1051172657 has 16 divisors (see below), whose sum is σ = 1149120000. Its totient is φ = 958461504.

The previous prime is 1051172621. The next prime is 1051172659. The reversal of 1051172657 is 7562711501.

It is a cyclic number.

It is not a de Polignac number, because 1051172657 - 2⁸ = 1051172401 is a prime.

It is a super-2 number, since 2×1051172657² = 2209927909648879298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1051172659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42719 + ... + 62667.

It is an arithmetic number, because the mean of its divisors is an integer number (71820000).

Almost surely, 2^1051172657 is an apocalyptic number.

It is an amenable number.

1051172657 is a deficient number, since it is larger than the sum of its proper divisors (97947343).

1051172657 is a wasteful number, since it uses less digits than its factorization.

1051172657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20080.

The product of its (nonzero) digits is 14700, while the sum is 35.

The square root of 1051172657 is about 32421.7929331491. The cubic root of 1051172657 is about 1016.7745920125.

The spelling of 1051172657 in words is "one billion, fifty-one million, one hundred seventy-two thousand, six hundred fifty-seven".