1119661253 has 4 divisors (see below), whose sum is σ = 1119746988. Its totient is φ = 1119575520.

The previous prime is 1119661247. The next prime is 1119661273. The reversal of 1119661253 is 3521669111.

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 117115684 + 1002545569 = 10822^2 + 31663^2 .

It is a cyclic number.

It is not a de Polignac number, because 1119661253 - 2⁴ = 1119661237 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1119661223) 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, 18758 + ... + 50903.

It is an arithmetic number, because the mean of its divisors is an integer number (279936747).

Almost surely, 2^1119661253 is an apocalyptic number.

It is an amenable number.

1119661253 is a deficient number, since it is larger than the sum of its proper divisors (85735).

1119661253 is an equidigital number, since it uses as much as digits as its factorization.

1119661253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85734.

The product of its digits is 9720, while the sum is 35.

The square root of 1119661253 is about 33461.3396773052. The cubic root of 1119661253 is about 1038.3941108963.

The spelling of 1119661253 in words is "one billion, one hundred nineteen million, six hundred sixty-one thousand, two hundred fifty-three".