133465215 has 96 divisors (see below), whose sum is σ = 259303680. Its totient is φ = 58226688.

The previous prime is 133465193. The next prime is 133465223. The reversal of 133465215 is 512564331.

It is not a de Polignac number, because 133465215 - 2⁶ = 133465151 is a prime.

It is a super-2 number, since 2×133465215² = 35625927229992450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 818724 + ... + 818886.

It is an arithmetic number, because the mean of its divisors is an integer number (2701080).

Almost surely, 2^133465215 is an apocalyptic number.

133465215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

133465215 is a deficient number, since it is larger than the sum of its proper divisors (125838465).

133465215 is a wasteful number, since it uses less digits than its factorization.

133465215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233 (or 220 counting only the distinct ones).

The product of its digits is 10800, while the sum is 30.

The square root of 133465215 is about 11552.7146160545. The cubic root of 133465215 is about 511.0413363670.

The spelling of 133465215 in words is "one hundred thirty-three million, four hundred sixty-five thousand, two hundred fifteen".