133415232 has 28 divisors (see below), whose sum is σ = 352994976. Its totient is φ = 44471680.

The previous prime is 133415221. The next prime is 133415251. The reversal of 133415232 is 232514331.

It is a super-2 number, since 2×133415232² = 35599248259227648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 347244 + ... + 347627.

Almost surely, 2^133415232 is an apocalyptic number.

133415232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133415232 is an abundant number, since it is smaller than the sum of its proper divisors (219579744).

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

133415232 is an equidigital number, since it uses as much as digits as its factorization.

133415232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694886 (or 694876 counting only the distinct ones).

The product of its digits is 2160, while the sum is 24.

The square root of 133415232 is about 11550.5511556808. The cubic root of 133415232 is about 510.9775330545.

Adding to 133415232 its reverse (232514331), we get a palindrome (365929563).

Subtracting 133415232 from its reverse (232514331), we obtain a palindrome (99099099).

The spelling of 133415232 in words is "one hundred thirty-three million, four hundred fifteen thousand, two hundred thirty-two".