133980624 has 60 divisors (see below), whose sum is σ = 375802336. Its totient is φ = 44559936.

The previous prime is 133980607. The next prime is 133980659. The reversal of 133980624 is 426089331.

It is a Cunningham number, because it is equal to 11575²-1.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 91869 + ... + 93315.

Almost surely, 2^133980624 is an apocalyptic number.

It is an amenable number.

133980624 is an abundant number, since it is smaller than the sum of its proper divisors (241821712).

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

133980624 is a wasteful number, since it uses less digits than its factorization.

133980624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2104 (or 2095 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 133980624 is about 11574.9999568035. Note that the first 4 decimals coincide. The cubic root of 133980624 is about 511.6983289631.

The spelling of 133980624 in words is "one hundred thirty-three million, nine hundred eighty thousand, six hundred twenty-four".