1156118972 has 24 divisors (see below), whose sum is σ = 2075201856. Its totient is φ = 563310848.

The previous prime is 1156118947. The next prime is 1156118987. The reversal of 1156118972 is 2798116511.

It is a happy number.

It is a super-2 number, since 2×1156118972² = 2673222154836673568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30608 + ... + 57000.

It is an arithmetic number, because the mean of its divisors is an integer number (86466744).

Almost surely, 2^1156118972 is an apocalyptic number.

It is an amenable number.

1156118972 is a deficient number, since it is larger than the sum of its proper divisors (919082884).

1156118972 is a wasteful number, since it uses less digits than its factorization.

1156118972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26677 (or 26675 counting only the distinct ones).

The product of its digits is 30240, while the sum is 41.

The square root of 1156118972 is about 34001.7495432220. The cubic root of 1156118972 is about 1049.5444651343.

The spelling of 1156118972 in words is "one billion, one hundred fifty-six million, one hundred eighteen thousand, nine hundred seventy-two".