133127898 has 16 divisors (see below), whose sum is σ = 268893216. Its totient is φ = 43936400.

The previous prime is 133127881. The next prime is 133127903. The reversal of 133127898 is 898721331.

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, 109236 + ... + 110447.

It is an arithmetic number, because the mean of its divisors is an integer number (16805826).

Almost surely, 2^133127898 is an apocalyptic number.

133127898 is an abundant number, since it is smaller than the sum of its proper divisors (135765318).

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

133127898 is a wasteful number, since it uses less digits than its factorization.

133127898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219789.

The product of its digits is 72576, while the sum is 42.

The square root of 133127898 is about 11538.1063437637. The cubic root of 133127898 is about 510.6104416696.

The spelling of 133127898 in words is "one hundred thirty-three million, one hundred twenty-seven thousand, eight hundred ninety-eight".