153994818 has 16 divisors (see below), whose sum is σ = 310716576. Its totient is φ = 50877120.

The previous prime is 153994817. The next prime is 153994837. The reversal of 153994818 is 818499351.

153994818 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (153994817) 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, 112888 + ... + 114243.

It is an arithmetic number, because the mean of its divisors is an integer number (19419786).

Almost surely, 2^153994818 is an apocalyptic number.

153994818 is an abundant number, since it is smaller than the sum of its proper divisors (156721758).

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

153994818 is a wasteful number, since it uses less digits than its factorization.

153994818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227249.

The product of its digits is 311040, while the sum is 48.

The square root of 153994818 is about 12409.4648555044. The cubic root of 153994818 is about 536.0048288902.

The spelling of 153994818 in words is "one hundred fifty-three million, nine hundred ninety-four thousand, eight hundred eighteen".