1157656 has 16 divisors (see below), whose sum is σ = 2229840. Its totient is φ = 563040.

The previous prime is 1157641. The next prime is 1157669. The reversal of 1157656 is 6567511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1660 + ... + 2251.

It is an arithmetic number, because the mean of its divisors is an integer number (139365).

2^1157656 is an apocalyptic number.

It is an amenable number.

1157656 is a deficient number, since it is larger than the sum of its proper divisors (1072184).

1157656 is a wasteful number, since it uses less digits than its factorization.

1157656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3954 (or 3950 counting only the distinct ones).

The product of its digits is 6300, while the sum is 31.

The square root of 1157656 is about 1075.9442364732. The cubic root of 1157656 is about 105.0009372554. Note that the first 3 decimals are identical.

Subtracting from 1157656 its sum of digits (31), we obtain a cube (1157625 = 105³).

The spelling of 1157656 in words is "one million, one hundred fifty-seven thousand, six hundred fifty-six".