1157631364 has 6 divisors (see below), whose sum is σ = 2025854894. Its totient is φ = 578815680.

The previous prime is 1157631361. The next prime is 1157631401. The reversal of 1157631364 is 4631367511.

It can be written as a sum of positive squares in only one way, i.e., 1150566400 + 7064964 = 33920^2 + 2658^2 .

It is a super-2 number, since 2×1157631364² = 2680220749833000992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1157631361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144703917 + ... + 144703924.

Almost surely, 2^1157631364 is an apocalyptic number.

It is an amenable number.

1157631364 is a deficient number, since it is larger than the sum of its proper divisors (868223530).

1157631364 is a wasteful number, since it uses less digits than its factorization.

1157631364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289407845 (or 289407843 counting only the distinct ones).

The product of its digits is 45360, while the sum is 37.

The square root of 1157631364 is about 34023.9821890384. The cubic root of 1157631364 is about 1050.0019241083.

Adding to 1157631364 its reverse (4631367511), we get a palindrome (5788998875).

The spelling of 1157631364 in words is "one billion, one hundred fifty-seven million, six hundred thirty-one thousand, three hundred sixty-four".