133465018 has 12 divisors (see below), whose sum is σ = 207341550. Its totient is φ = 64430576.

The previous prime is 133464997. The next prime is 133465037. The reversal of 133465018 is 810564331.

It can be written as a sum of positive squares in 3 ways, for example, as 80946009 + 52519009 = 8997^2 + 7247^2 .

It is a super-2 number, since 2×133465018² = 35625822059480648, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37993 + ... + 41356.

Almost surely, 2^133465018 is an apocalyptic number.

133465018 is a deficient number, since it is larger than the sum of its proper divisors (73876532).

133465018 is an equidigital number, since it uses as much as digits as its factorization.

133465018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79409 (or 79380 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 133465018 is about 11552.7060899168. The cubic root of 133465018 is about 511.0410849278.

The spelling of 133465018 in words is "one hundred thirty-three million, four hundred sixty-five thousand, eighteen".