133115994 has 32 divisors (see below), whose sum is σ = 322706880. Its totient is φ = 40338000.

The previous prime is 133115987. The next prime is 133116029. The reversal of 133115994 is 499511331.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111457 + ... + 112644.

It is an arithmetic number, because the mean of its divisors is an integer number (10084590).

Almost surely, 2^133115994 is an apocalyptic number.

133115994 is an abundant number, since it is smaller than the sum of its proper divisors (189590886).

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

133115994 is a wasteful number, since it uses less digits than its factorization.

133115994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224123 (or 224117 counting only the distinct ones).

The product of its digits is 14580, while the sum is 36.

The square root of 133115994 is about 11537.5904763516. The cubic root of 133115994 is about 510.5952220000.

The spelling of 133115994 in words is "one hundred thirty-three million, one hundred fifteen thousand, nine hundred ninety-four".