1168256953 has 4 divisors (see below), whose sum is σ = 1168329460. Its totient is φ = 1168184448.

The previous prime is 1168256927. The next prime is 1168257031. The reversal of 1168256953 is 3596528611.

1168256953 is a nontrivial binomial coefficient, being equal to C(48338, 2).

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1088208144 + 80048809 = 32988^2 + 8947^2 .

It is a 3-Lehmer number, since φ(1168256953) divides (1168256953-1)³.

It is a cyclic number.

It is not a de Polignac number, because 1168256953 - 2²¹ = 1166159801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1168256753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1 + ... + 48337.

It is an arithmetic number, because the mean of its divisors is an integer number (292082365).

It is a Poulet number, since it divides 2^1168256952-1.

Almost surely, 2^1168256953 is an apocalyptic number.

1168256953 is the 48337-th triangular number and also the 24169-th hexagonal number.

1168256953 is the 16113-rd centered nonagonal number.

It is an amenable number.

1168256953 is a deficient number, since it is larger than the sum of its proper divisors (72507).

1168256953 is an equidigital number, since it uses as much as digits as its factorization.

1168256953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72506.

The product of its digits is 388800, while the sum is 46.

The square root of 1168256953 is about 34179.7740337762. The cubic root of 1168256953 is about 1053.2047072169.

It can be divided in two parts, 11682 and 56953, that added together give a triangular number (68635 = T₃₇₀).

The spelling of 1168256953 in words is "one billion, one hundred sixty-eight million, two hundred fifty-six thousand, nine hundred fifty-three".