133890315 has 32 divisors (see below), whose sum is σ = 231813120. Its totient is φ = 65598336.

The previous prime is 133890313. The next prime is 133890343. The reversal of 133890315 is 513098331.

It is not a de Polignac number, because 133890315 - 2¹ = 133890313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133890313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41946 + ... + 45024.

It is an arithmetic number, because the mean of its divisors is an integer number (7244160).

Almost surely, 2^133890315 is an apocalyptic number.

133890315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

133890315 is a deficient number, since it is larger than the sum of its proper divisors (97922805).

133890315 is a wasteful number, since it uses less digits than its factorization.

133890315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3323.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 133890315 is about 11571.0982624814. The cubic root of 133890315 is about 511.5833338500.

The spelling of 133890315 in words is "one hundred thirty-three million, eight hundred ninety thousand, three hundred fifteen".