133979737 has 24 divisors (see below), whose sum is σ = 150141600. Its totient is φ = 119099520.

The previous prime is 133979731. The next prime is 133979743. The reversal of 133979737 is 737979331.

It is an interprime number because it is at equal distance from previous prime (133979731) and next prime (133979743).

It is not a de Polignac number, because 133979737 - 2²³ = 125591129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133979731) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 963814 + ... + 963952.

It is an arithmetic number, because the mean of its divisors is an integer number (6255900).

Almost surely, 2^133979737 is an apocalyptic number.

133979737 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

133979737 is a deficient number, since it is larger than the sum of its proper divisors (16161863).

133979737 is a wasteful number, since it uses less digits than its factorization.

133979737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277 (or 246 counting only the distinct ones).

The product of its digits is 750141, while the sum is 49.

The square root of 133979737 is about 11574.9616414051. The cubic root of 133979737 is about 511.6971997515.

The spelling of 133979737 in words is "one hundred thirty-three million, nine hundred seventy-nine thousand, seven hundred thirty-seven".