745162857 has 12 divisors (see below), whose sum is σ = 1083572100. Its totient is φ = 493440288.

The previous prime is 745162799. The next prime is 745162871. The reversal of 745162857 is 758261547.

It can be written as a sum of positive squares in 2 ways, for example, as 355850496 + 389312361 = 18864^2 + 19731^2 .

It is not a de Polignac number, because 745162857 - 2¹¹ = 745160809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (745162057) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 276498 + ... + 279179.

It is an arithmetic number, because the mean of its divisors is an integer number (90297675).

Almost surely, 2^745162857 is an apocalyptic number.

It is an amenable number.

745162857 is a deficient number, since it is larger than the sum of its proper divisors (338409243).

745162857 is a wasteful number, since it uses less digits than its factorization.

745162857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555832 (or 555829 counting only the distinct ones).

The product of its digits is 470400, while the sum is 45.

The square root of 745162857 is about 27297.6712743047. The cubic root of 745162857 is about 906.6028216259.

The spelling of 745162857 in words is "seven hundred forty-five million, one hundred sixty-two thousand, eight hundred fifty-seven".