133898456 has 32 divisors (see below), whose sum is σ = 268380000. Its totient is φ = 62472960.

The previous prime is 133898419. The next prime is 133898459. The reversal of 133898456 is 654898331.

It is a self number, because there is not a number n which added to its sum of digits gives 133898456.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1331 + ... + 16418.

It is an arithmetic number, because the mean of its divisors is an integer number (8386875).

Almost surely, 2^133898456 is an apocalyptic number.

It is an amenable number.

133898456 is an abundant number, since it is smaller than the sum of its proper divisors (134481544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133898456 is a wasteful number, since it uses less digits than its factorization.

133898456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17819 (or 17815 counting only the distinct ones).

The product of its digits is 622080, while the sum is 47.

The square root of 133898456 is about 11571.4500387808. The cubic root of 133898456 is about 511.5937023259.

The spelling of 133898456 in words is "one hundred thirty-three million, eight hundred ninety-eight thousand, four hundred fifty-six".