1127157657 has 8 divisors (see below), whose sum is σ = 1504236480. Its totient is φ = 750758640.

The previous prime is 1127157643. The next prime is 1127157673. The reversal of 1127157657 is 7567517211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1127157657 - 2⁴ = 1127157641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1127157607) 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, 166069 + ... + 172722.

It is an arithmetic number, because the mean of its divisors is an integer number (188029560).

Almost surely, 2^1127157657 is an apocalyptic number.

It is an amenable number.

1127157657 is a deficient number, since it is larger than the sum of its proper divisors (377078823).

1127157657 is a wasteful number, since it uses less digits than its factorization.

1127157657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339903.

The product of its digits is 102900, while the sum is 42.

The square root of 1127157657 is about 33573.1687065728. The cubic root of 1127157657 is about 1040.7063917040.

The spelling of 1127157657 in words is "one billion, one hundred twenty-seven million, one hundred fifty-seven thousand, six hundred fifty-seven".