133157764 has 18 divisors (see below), whose sum is σ = 243602030. Its totient is φ = 63683136.

The previous prime is 133157737. The next prime is 133157777. The reversal of 133157764 is 467751331.

It can be written as a sum of positive squares in only one way, i.e., 121881600 + 11276164 = 11040^2 + 3358^2 .

It is a super-2 number, since 2×133157764² = 35461980226959392, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29349 + ... + 33580.

Almost surely, 2^133157764 is an apocalyptic number.

It is an amenable number.

133157764 is a deficient number, since it is larger than the sum of its proper divisors (110444266).

133157764 is a wasteful number, since it uses less digits than its factorization.

133157764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62979 (or 62954 counting only the distinct ones).

The product of its digits is 52920, while the sum is 37.

The square root of 133157764 is about 11539.4005043590. The cubic root of 133157764 is about 510.6486223751.

It can be divided in two parts, 1331 and 57764, that added together give a palindrome (59095).

The spelling of 133157764 in words is "one hundred thirty-three million, one hundred fifty-seven thousand, seven hundred sixty-four".