133439160 has 64 divisors (see below), whose sum is σ = 407890080. Its totient is φ = 34910720.

The previous prime is 133439129. The next prime is 133439177. The reversal of 133439160 is 61934331.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 4131 + ... + 16850.

Almost surely, 2^133439160 is an apocalyptic number.

133439160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133439160 is an abundant number, since it is smaller than the sum of its proper divisors (274450920).

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

133439160 is a wasteful number, since it uses less digits than its factorization.

133439160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21048 (or 21044 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 133439160 is about 11551.5869039712. The cubic root of 133439160 is about 511.0080791408.

The spelling of 133439160 in words is "one hundred thirty-three million, four hundred thirty-nine thousand, one hundred sixty".