133888898 has 24 divisors (see below), whose sum is σ = 237247056. Its totient is φ = 56175600.

The previous prime is 133888891. The next prime is 133888901. The reversal of 133888898 is 898888331.

It is not an unprimeable number, because it can be changed into a prime (133888891) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14288 + ... + 21723.

It is an arithmetic number, because the mean of its divisors is an integer number (9885294).

Almost surely, 2^133888898 is an apocalyptic number.

133888898 is a deficient number, since it is larger than the sum of its proper divisors (103358158).

133888898 is a wasteful number, since it uses less digits than its factorization.

133888898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36050 (or 36037 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 56.

The square root of 133888898 is about 11571.0370321765. The cubic root of 133888898 is about 511.5815290988.

The spelling of 133888898 in words is "one hundred thirty-three million, eight hundred eighty-eight thousand, eight hundred ninety-eight".