133765572 has 24 divisors (see below), whose sum is σ = 318761856. Its totient is φ = 43639648.

The previous prime is 133765549. The next prime is 133765601. The reversal of 133765572 is 275567331.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 133765572.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118023 + ... + 119150.

It is an arithmetic number, because the mean of its divisors is an integer number (13281744).

Almost surely, 2^133765572 is an apocalyptic number.

133765572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133765572 is an abundant number, since it is smaller than the sum of its proper divisors (184996284).

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

133765572 is a wasteful number, since it uses less digits than its factorization.

133765572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237227 (or 237225 counting only the distinct ones).

The product of its digits is 132300, while the sum is 39.

The square root of 133765572 is about 11565.7067228942. The cubic root of 133765572 is about 511.4244070725.

The spelling of 133765572 in words is "one hundred thirty-three million, seven hundred sixty-five thousand, five hundred seventy-two".