745589138 has 16 divisors (see below), whose sum is σ = 1279615104. Its totient is φ = 319172640.

The previous prime is 745589113. The next prime is 745589149. The reversal of 745589138 is 831985547.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17603 + ... + 42438.

It is an arithmetic number, because the mean of its divisors is an integer number (79975944).

Almost surely, 2^745589138 is an apocalyptic number.

745589138 is a deficient number, since it is larger than the sum of its proper divisors (534025966).

745589138 is a wasteful number, since it uses less digits than its factorization.

745589138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60937.

The product of its digits is 1209600, while the sum is 50.

The square root of 745589138 is about 27305.4781683090. The cubic root of 745589138 is about 906.7756670124.

The spelling of 745589138 in words is "seven hundred forty-five million, five hundred eighty-nine thousand, one hundred thirty-eight".