133332507 has 64 divisors (see below), whose sum is σ = 250675200. Its totient is φ = 68027040.

The previous prime is 133332499. The next prime is 133332509. The reversal of 133332507 is 705233331.

133332507 is a `hidden beast` number, since 1 + 333 + 325 + 0 + 7 = 666.

It is not a de Polignac number, because 133332507 - 2³ = 133332499 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (133332509) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 122118 + ... + 123204.

It is an arithmetic number, because the mean of its divisors is an integer number (3916800).

Almost surely, 2^133332507 is an apocalyptic number.

133332507 is a deficient number, since it is larger than the sum of its proper divisors (117342693).

133332507 is a wasteful number, since it uses less digits than its factorization.

133332507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173 (or 1167 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 27.

The square root of 133332507 is about 11546.9696024541. The cubic root of 133332507 is about 510.8718995485.

Adding to 133332507 its reverse (705233331), we get a palindrome (838565838).

The spelling of 133332507 in words is "one hundred thirty-three million, three hundred thirty-two thousand, five hundred seven".