1156731748 has 36 divisors (see below), whose sum is σ = 2167567360. Its totient is φ = 539989632.

The previous prime is 1156731721. The next prime is 1156731749. The reversal of 1156731748 is 8471376511.

It is a super-2 number, since 2×1156731748² = 2676056673662271008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1156731749) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 142873 + ... + 150751.

Almost surely, 2^1156731748 is an apocalyptic number.

It is an amenable number.

1156731748 is a deficient number, since it is larger than the sum of its proper divisors (1010835612).

1156731748 is a wasteful number, since it uses less digits than its factorization.

1156731748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8044 (or 8025 counting only the distinct ones).

The product of its digits is 141120, while the sum is 43.

The square root of 1156731748 is about 34010.7592976105. The cubic root of 1156731748 is about 1049.7298618744.

The spelling of 1156731748 in words is "one billion, one hundred fifty-six million, seven hundred thirty-one thousand, seven hundred forty-eight".