1157023684 has 6 divisors (see below), whose sum is σ = 2024791454. Its totient is φ = 578511840.

The previous prime is 1157023669. The next prime is 1157023687. The reversal of 1157023684 is 4863207511.

It can be written as a sum of positive squares in only one way, i.e., 1026561600 + 130462084 = 32040^2 + 11422^2 .

It is not an unprimeable number, because it can be changed into a prime (1157023687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144627957 + ... + 144627964.

Almost surely, 2^1157023684 is an apocalyptic number.

It is an amenable number.

1157023684 is a deficient number, since it is larger than the sum of its proper divisors (867767770).

1157023684 is a wasteful number, since it uses less digits than its factorization.

1157023684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289255925 (or 289255923 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 1157023684 is about 34015.0508451773. The cubic root of 1157023684 is about 1049.8181647329.

The spelling of 1157023684 in words is "one billion, one hundred fifty-seven million, twenty-three thousand, six hundred eighty-four".