133491296 has 48 divisors (see below), whose sum is σ = 268658208. Its totient is φ = 65280000.

The previous prime is 133491251. The next prime is 133491311. The reversal of 133491296 is 692194331.

It is a super-2 number, since 2×133491296² = 35639852215519232, which contains 22 as substring.

It is a congruent number.

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, 332696 + ... + 333096.

It is an arithmetic number, because the mean of its divisors is an integer number (5597046).

Almost surely, 2^133491296 is an apocalyptic number.

133491296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

133491296 is an abundant number, since it is smaller than the sum of its proper divisors (135166912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133491296 is a wasteful number, since it uses less digits than its factorization.

133491296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615 (or 607 counting only the distinct ones).

The product of its digits is 34992, while the sum is 38.

The square root of 133491296 is about 11553.8433432343. The cubic root of 133491296 is about 511.0746224459.

The spelling of 133491296 in words is "one hundred thirty-three million, four hundred ninety-one thousand, two hundred ninety-six".