153994473 has 8 divisors (see below), whose sum is σ = 228140000. Its totient is φ = 102662964.

The previous prime is 153994459. The next prime is 153994493. The reversal of 153994473 is 374499351.

153994473 is a `hidden beast` number, since 1 + 539 + 9 + 44 + 73 = 666.

153994473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 153994473 - 2⁴ = 153994457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (153994403) 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, 2851723 + ... + 2851776.

It is an arithmetic number, because the mean of its divisors is an integer number (28517500).

Almost surely, 2^153994473 is an apocalyptic number.

It is an amenable number.

153994473 is a deficient number, since it is larger than the sum of its proper divisors (74145527).

153994473 is an equidigital number, since it uses as much as digits as its factorization.

153994473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5703508 (or 5703502 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 153994473 is about 12409.4509548167. The cubic root of 153994473 is about 536.0044286131.

The spelling of 153994473 in words is "one hundred fifty-three million, nine hundred ninety-four thousand, four hundred seventy-three".