1147158212 has 48 divisors (see below), whose sum is σ = 2264787840. Its totient is φ = 505688832.

The previous prime is 1147158211. The next prime is 1147158217. The reversal of 1147158212 is 2128517411.

It is not an unprimeable number, because it can be changed into a prime (1147158211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55808 + ... + 73544.

It is an arithmetic number, because the mean of its divisors is an integer number (47183080).

Almost surely, 2^1147158212 is an apocalyptic number.

It is an amenable number.

1147158212 is a deficient number, since it is larger than the sum of its proper divisors (1117629628).

1147158212 is a wasteful number, since it uses less digits than its factorization.

1147158212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17820 (or 17818 counting only the distinct ones).

The product of its digits is 4480, while the sum is 32.

The square root of 1147158212 is about 33869.7241205180. The cubic root of 1147158212 is about 1046.8258524749.

The spelling of 1147158212 in words is "one billion, one hundred forty-seven million, one hundred fifty-eight thousand, two hundred twelve".