745422231 has 8 divisors (see below), whose sum is σ = 1046206720. Its totient is φ = 470792952.

The previous prime is 745422229. The next prime is 745422233. The reversal of 745422231 is 132224547.

It is an interprime number because it is at equal distance from previous prime (745422229) and next prime (745422233).

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

It is not a de Polignac number, because 745422231 - 2¹ = 745422229 is a prime.

It is a super-2 number, since 2×745422231² = 1111308604938034722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745422233) 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, 6538735 + ... + 6538848.

It is an arithmetic number, because the mean of its divisors is an integer number (130775840).

Almost surely, 2^745422231 is an apocalyptic number.

745422231 is a deficient number, since it is larger than the sum of its proper divisors (300784489).

745422231 is a wasteful number, since it uses less digits than its factorization.

745422231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13077605.

The product of its digits is 13440, while the sum is 30.

The square root of 745422231 is about 27302.4217057755. The cubic root of 745422231 is about 906.7079985994.

Adding to 745422231 its reverse (132224547), we get a palindrome (877646778).

The spelling of 745422231 in words is "seven hundred forty-five million, four hundred twenty-two thousand, two hundred thirty-one".