1172256383 has 4 divisors (see below), whose sum is σ = 1172884128. Its totient is φ = 1171628640.

The previous prime is 1172256377. The next prime is 1172256401. The reversal of 1172256383 is 3836522711.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1172256383 - 2¹² = 1172252287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1172256373) 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, 311063 + ... + 314808.

It is an arithmetic number, because the mean of its divisors is an integer number (293221032).

Almost surely, 2^1172256383 is an apocalyptic number.

1172256383 is a deficient number, since it is larger than the sum of its proper divisors (627745).

1172256383 is an equidigital number, since it uses as much as digits as its factorization.

1172256383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627744.

The product of its digits is 60480, while the sum is 38.

The square root of 1172256383 is about 34238.2298461822. The cubic root of 1172256383 is about 1054.4051910906.

The spelling of 1172256383 in words is "one billion, one hundred seventy-two million, two hundred fifty-six thousand, three hundred eighty-three".