745607131 has 8 divisors (see below), whose sum is σ = 802848240. Its totient is φ = 689852928.

The previous prime is 745607129. The next prime is 745607147. The reversal of 745607131 is 131706547.

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

It is not a de Polignac number, because 745607131 - 2¹ = 745607129 is a prime.

It is a super-2 number, since 2×745607131² = 1111859987596102322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (745607111) 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, 370686 + ... + 372691.

It is an arithmetic number, because the mean of its divisors is an integer number (100356030).

Almost surely, 2^745607131 is an apocalyptic number.

745607131 is a deficient number, since it is larger than the sum of its proper divisors (57241109).

745607131 is a wasteful number, since it uses less digits than its factorization.

745607131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743453.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 745607131 is about 27305.8076423313. The cubic root of 745607131 is about 906.7829612367.

The spelling of 745607131 in words is "seven hundred forty-five million, six hundred seven thousand, one hundred thirty-one".