133118866 has 16 divisors (see below), whose sum is σ = 202138200. Its totient is φ = 65743488.

The previous prime is 133118849. The next prime is 133118879. The reversal of 133118866 is 668811331.

It can be written as a sum of positive squares in 4 ways, for example, as 129618225 + 3500641 = 11385^2 + 1871^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88416 + ... + 89908.

Almost surely, 2^133118866 is an apocalyptic number.

133118866 is a deficient number, since it is larger than the sum of its proper divisors (69019334).

133118866 is a wasteful number, since it uses less digits than its factorization.

133118866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2013.

The product of its digits is 20736, while the sum is 37.

The square root of 133118866 is about 11537.7149384096. The cubic root of 133118866 is about 510.5988940329.

The spelling of 133118866 in words is "one hundred thirty-three million, one hundred eighteen thousand, eight hundred sixty-six".