1257034113 has 8 divisors (see below), whose sum is σ = 1862272800. Its totient is φ = 838022724.

The previous prime is 1257034109. The next prime is 1257034127. The reversal of 1257034113 is 3114307521.

It is not a de Polignac number, because 1257034113 - 2² = 1257034109 is a prime.

It is a super-2 number, since 2×1257034113² = 3160269522491393538, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 46556819 = 1257034113 / (1 + 2 + 5 + 7 + 0 + 3 + 4 + 1 + 1 + 3).

It is not an unprimeable number, because it can be changed into a prime (1257030113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23278383 + ... + 23278436.

It is an arithmetic number, because the mean of its divisors is an integer number (232784100).

Almost surely, 2^1257034113 is an apocalyptic number.

It is an amenable number.

1257034113 is a deficient number, since it is larger than the sum of its proper divisors (605238687).

1257034113 is an equidigital number, since it uses as much as digits as its factorization.

1257034113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46556828 (or 46556822 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 1257034113 is about 35454.6768847214. The cubic root of 1257034113 is about 1079.2341715853.

The spelling of 1257034113 in words is "one billion, two hundred fifty-seven million, thirty-four thousand, one hundred thirteen".