133012508 has 6 divisors (see below), whose sum is σ = 232771896. Its totient is φ = 66506252.

The previous prime is 133012489. The next prime is 133012541. The reversal of 133012508 is 805210331.

133012508 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16626560 + ... + 16626567.

It is an arithmetic number, because the mean of its divisors is an integer number (38795316).

Almost surely, 2^133012508 is an apocalyptic number.

It is an amenable number.

133012508 is a deficient number, since it is larger than the sum of its proper divisors (99759388).

133012508 is a wasteful number, since it uses less digits than its factorization.

133012508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33253131 (or 33253129 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 133012508 is about 11533.1048724964. The cubic root of 133012508 is about 510.4628733764.

Adding to 133012508 its reverse (805210331), we get a palindrome (938222839).

The spelling of 133012508 in words is "one hundred thirty-three million, twelve thousand, five hundred eight".