133898455 has 16 divisors (see below), whose sum is σ = 167491584. Its totient is φ = 102644640.

The previous prime is 133898419. The next prime is 133898459. The reversal of 133898455 is 554898331.

It is not a de Polignac number, because 133898455 - 2⁷ = 133898327 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 (133898459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11772 + ... + 20158.

It is an arithmetic number, because the mean of its divisors is an integer number (10468224).

Almost surely, 2^133898455 is an apocalyptic number.

133898455 is a deficient number, since it is larger than the sum of its proper divisors (33593129).

133898455 is a wasteful number, since it uses less digits than its factorization.

133898455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8526.

The product of its digits is 518400, while the sum is 46.

The square root of 133898455 is about 11571.4499955710. The cubic root of 133898455 is about 511.5937010523.

The spelling of 133898455 in words is "one hundred thirty-three million, eight hundred ninety-eight thousand, four hundred fifty-five".