745662291 has 8 divisors (see below), whose sum is σ = 1084599744. Its totient is φ = 451916520.

The previous prime is 745662287. The next prime is 745662301. The reversal of 745662291 is 192266547.

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

It is not a de Polignac number, because 745662291 - 2² = 745662287 is a prime.

It is not an unprimeable number, because it can be changed into a prime (745662241) 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 7 ways as a sum of consecutive naturals, for example, 11297881 + ... + 11297946.

It is an arithmetic number, because the mean of its divisors is an integer number (135574968).

Almost surely, 2^745662291 is an apocalyptic number.

745662291 is a deficient number, since it is larger than the sum of its proper divisors (338937453).

745662291 is a wasteful number, since it uses less digits than its factorization.

745662291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22595841.

The product of its digits is 181440, while the sum is 42.

The square root of 745662291 is about 27306.8176651912. The cubic root of 745662291 is about 906.8053219468.

The spelling of 745662291 in words is "seven hundred forty-five million, six hundred sixty-two thousand, two hundred ninety-one".