1057609172 has 6 divisors (see below), whose sum is σ = 1850816058. Its totient is φ = 528804584.

The previous prime is 1057609169. The next prime is 1057609183. The reversal of 1057609172 is 2719067501.

It can be written as a sum of positive squares in only one way, i.e., 965717776 + 91891396 = 31076^2 + 9586^2 .

It is a super-2 number, since 2×1057609172² = 2237074321397051168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 132201143 + ... + 132201150.

It is an arithmetic number, because the mean of its divisors is an integer number (308469343).

Almost surely, 2^1057609172 is an apocalyptic number.

It is an amenable number.

1057609172 is a deficient number, since it is larger than the sum of its proper divisors (793206886).

1057609172 is a wasteful number, since it uses less digits than its factorization.

1057609172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264402297 (or 264402295 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 38.

The square root of 1057609172 is about 32520.9036159821. The cubic root of 1057609172 is about 1018.8456670946.

The spelling of 1057609172 in words is "one billion, fifty-seven million, six hundred nine thousand, one hundred seventy-two".