133012530 has 80 divisors (see below), whose sum is σ = 408767040. Its totient is φ = 30401568.

The previous prime is 133012489. The next prime is 133012541. The reversal of 133012530 is 35210331.

133012530 is a `hidden beast` number, since 133 + 0 + 1 + 2 + 530 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6060 + ... + 17399.

It is an arithmetic number, because the mean of its divisors is an integer number (5109588).

Almost surely, 2^133012530 is an apocalyptic number.

133012530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133012530 is an abundant number, since it is smaller than the sum of its proper divisors (275754510).

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

133012530 is a wasteful number, since it uses less digits than its factorization.

133012530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23485 (or 23476 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 133012530 is about 11533.1058262725. The cubic root of 133012530 is about 510.4629015196.

Adding to 133012530 its reverse (35210331), we get a palindrome (168222861).

The spelling of 133012530 in words is "one hundred thirty-three million, twelve thousand, five hundred thirty".