133013136 has 40 divisors (see below), whose sum is σ = 346783360. Its totient is φ = 43929216.

The previous prime is 133013119. The next prime is 133013137. The reversal of 133013136 is 631310331.

It is not an unprimeable number, because it can be changed into a prime (133013137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7480 + ... + 17943.

It is an arithmetic number, because the mean of its divisors is an integer number (8669584).

Almost surely, 2^133013136 is an apocalyptic number.

133013136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

133013136 is an abundant number, since it is smaller than the sum of its proper divisors (213770224).

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

133013136 is a wasteful number, since it uses less digits than its factorization.

133013136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25543 (or 25537 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 21.

The square root of 133013136 is about 11533.1320984371. The cubic root of 133013136 is about 510.4636767349.

Adding to 133013136 its reverse (631310331), we get a palindrome (764323467).

The spelling of 133013136 in words is "one hundred thirty-three million, thirteen thousand, one hundred thirty-six".