133166757 has 12 divisors (see below), whose sum is σ = 185613344. Its totient is φ = 84916920.

The previous prime is 133166713. The next prime is 133166767. The reversal of 133166757 is 757661331.

It is not a de Polignac number, because 133166757 - 2¹⁹ = 132642469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133166707) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40369 + ... + 43542.

Almost surely, 2^133166757 is an apocalyptic number.

It is an amenable number.

133166757 is a deficient number, since it is larger than the sum of its proper divisors (52446587).

133166757 is an equidigital number, since it uses as much as digits as its factorization.

133166757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83960 (or 83937 counting only the distinct ones).

The product of its digits is 79380, while the sum is 39.

The square root of 133166757 is about 11539.7901627369. The cubic root of 133166757 is about 510.6601179113.

The spelling of 133166757 in words is "one hundred thirty-three million, one hundred sixty-six thousand, seven hundred fifty-seven".