1172868231 has 8 divisors (see below), whose sum is σ = 1578171760. Its totient is φ = 774738432.

The previous prime is 1172868227. The next prime is 1172868311. The reversal of 1172868231 is 1328682711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1172868231 - 2² = 1172868227 is a prime.

It is a super-2 number, since 2×1172868231² = 2751239774578138722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1172868231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1172868211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1793050 + ... + 1793703.

It is an arithmetic number, because the mean of its divisors is an integer number (197271470).

Almost surely, 2^1172868231 is an apocalyptic number.

1172868231 is a deficient number, since it is larger than the sum of its proper divisors (405303529).

1172868231 is a wasteful number, since it uses less digits than its factorization.

1172868231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3586865.

The product of its digits is 32256, while the sum is 39.

The square root of 1172868231 is about 34247.1638387765. The cubic root of 1172868231 is about 1054.5886047501.

The spelling of 1172868231 in words is "one billion, one hundred seventy-two million, eight hundred sixty-eight thousand, two hundred thirty-one".