133913265 has 8 divisors (see below), whose sum is σ = 214261248. Its totient is φ = 71420400.

The previous prime is 133913251. The next prime is 133913281. The reversal of 133913265 is 562319331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 133913265 - 2⁶ = 133913201 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4463761 + ... + 4463790.

It is an arithmetic number, because the mean of its divisors is an integer number (26782656).

Almost surely, 2^133913265 is an apocalyptic number.

133913265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133913265 is a deficient number, since it is larger than the sum of its proper divisors (80347983).

133913265 is an equidigital number, since it uses as much as digits as its factorization.

133913265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8927559.

The product of its digits is 14580, while the sum is 33.

The square root of 133913265 is about 11572.0899149635. The cubic root of 133913265 is about 511.6125621696.

The spelling of 133913265 in words is "one hundred thirty-three million, nine hundred thirteen thousand, two hundred sixty-five".