745976231 has 16 divisors (see below), whose sum is σ = 1001591808. Its totient is φ = 536565600.

The previous prime is 745976221. The next prime is 745976249. The reversal of 745976231 is 132679547.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-745976231 is a prime.

It is a super-3 number, since 3×745976231³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745976221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 371615 + ... + 373616.

It is an arithmetic number, because the mean of its divisors is an integer number (62599488).

Almost surely, 2^745976231 is an apocalyptic number.

745976231 is a deficient number, since it is larger than the sum of its proper divisors (255615577).

745976231 is a wasteful number, since it uses less digits than its factorization.

745976231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745262.

The product of its digits is 317520, while the sum is 44.

The square root of 745976231 is about 27312.5654415692. The cubic root of 745976231 is about 906.9325656616.

The spelling of 745976231 in words is "seven hundred forty-five million, nine hundred seventy-six thousand, two hundred thirty-one".