133855898 has 16 divisors (see below), whose sum is σ = 224380800. Its totient is φ = 59359200.

The previous prime is 133855879. The next prime is 133855901. The reversal of 133855898 is 898558331.

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, 73298 + ... + 75101.

It is an arithmetic number, because the mean of its divisors is an integer number (14023800).

Almost surely, 2^133855898 is an apocalyptic number.

133855898 is a deficient number, since it is larger than the sum of its proper divisors (90524902).

133855898 is a wasteful number, since it uses less digits than its factorization.

133855898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148453.

The product of its digits is 1036800, while the sum is 50.

The square root of 133855898 is about 11569.6109701234. The cubic root of 133855898 is about 511.5394952983.

The spelling of 133855898 in words is "one hundred thirty-three million, eight hundred fifty-five thousand, eight hundred ninety-eight".