1057516187 has 24 divisors (see below), whose sum is σ = 1327099536. Its totient is φ = 835265088.

The previous prime is 1057516183. The next prime is 1057516219. The reversal of 1057516187 is 7816157501.

It is not a de Polignac number, because 1057516187 - 2² = 1057516183 is a prime.

It is a super-2 number, since 2×1057516187² = 2236680971534037938, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1057516181) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 506648 + ... + 508730.

It is an arithmetic number, because the mean of its divisors is an integer number (55295814).

Almost surely, 2^1057516187 is an apocalyptic number.

1057516187 is a deficient number, since it is larger than the sum of its proper divisors (269583349).

1057516187 is a wasteful number, since it uses less digits than its factorization.

1057516187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2907 (or 2900 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 41.

The square root of 1057516187 is about 32519.4739656102. The cubic root of 1057516187 is about 1018.8158072486.

It can be divided in two parts, 10575 and 16187, that added together give a palindrome (26762).

The spelling of 1057516187 in words is "one billion, fifty-seven million, five hundred sixteen thousand, one hundred eighty-seven".