133157756 has 12 divisors (see below), whose sum is σ = 238445592. Its totient is φ = 65030448.

The previous prime is 133157737. The next prime is 133157777. The reversal of 133157756 is 657751331.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386915 + ... + 387258.

It is an arithmetic number, because the mean of its divisors is an integer number (19870466).

Almost surely, 2^133157756 is an apocalyptic number.

It is an amenable number.

133157756 is a deficient number, since it is larger than the sum of its proper divisors (105287836).

133157756 is a wasteful number, since it uses less digits than its factorization.

133157756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774220 (or 774218 counting only the distinct ones).

The product of its digits is 66150, while the sum is 38.

The square root of 133157756 is about 11539.4001577205. The cubic root of 133157756 is about 510.6486121487.

The spelling of 133157756 in words is "one hundred thirty-three million, one hundred fifty-seven thousand, seven hundred fifty-six".