133958265 has 64 divisors (see below), whose sum is σ = 261273600. Its totient is φ = 57245184.

The previous prime is 133958239. The next prime is 133958267. The reversal of 133958265 is 562859331.

It is not a de Polignac number, because 133958265 - 2⁷ = 133958137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133958267) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 165181 + ... + 165989.

It is an arithmetic number, because the mean of its divisors is an integer number (4082400).

Almost surely, 2^133958265 is an apocalyptic number.

133958265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133958265 is a deficient number, since it is larger than the sum of its proper divisors (127315335).

133958265 is a wasteful number, since it uses less digits than its factorization.

133958265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926.

The product of its digits is 194400, while the sum is 42.

The square root of 133958265 is about 11574.0340849680. The cubic root of 133958265 is about 511.6698629081.

The spelling of 133958265 in words is "one hundred thirty-three million, nine hundred fifty-eight thousand, two hundred sixty-five".