133533315 has 12 divisors (see below), whose sum is σ = 231457824. Its totient is φ = 71217744.

The previous prime is 133533307. The next prime is 133533347. The reversal of 133533315 is 513335331.

It is a happy number.

It is not a de Polignac number, because 133533315 - 2³ = 133533307 is a prime.

It is a super-2 number, since 2×133533315² = 35662292429778450, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1483659 + ... + 1483748.

It is an arithmetic number, because the mean of its divisors is an integer number (19288152).

Almost surely, 2^133533315 is an apocalyptic number.

133533315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

133533315 is a deficient number, since it is larger than the sum of its proper divisors (97924509).

133533315 is a wasteful number, since it uses less digits than its factorization.

133533315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2967418 (or 2967415 counting only the distinct ones).

The product of its digits is 6075, while the sum is 27.

The square root of 133533315 is about 11555.6615994066. The cubic root of 133533315 is about 511.1282404030.

Adding to 133533315 its reverse (513335331), we get a palindrome (646868646).

The spelling of 133533315 in words is "one hundred thirty-three million, five hundred thirty-three thousand, three hundred fifteen".