147218418 has 32 divisors (see below), whose sum is σ = 333331200. Its totient is φ = 48145968.

The previous prime is 147218399. The next prime is 147218431. The reversal of 147218418 is 814812741.

147218418 is a `hidden beast` number, since 1 + 472 + 184 + 1 + 8 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22858 + ... + 28581.

It is an arithmetic number, because the mean of its divisors is an integer number (10416600).

Almost surely, 2^147218418 is an apocalyptic number.

147218418 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

147218418 is an abundant number, since it is smaller than the sum of its proper divisors (186112782).

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

147218418 is a wasteful number, since it uses less digits than its factorization.

147218418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51503 (or 51497 counting only the distinct ones).

The product of its digits is 14336, while the sum is 36.

The square root of 147218418 is about 12133.3597160885. The cubic root of 147218418 is about 528.0244694238.

The spelling of 147218418 in words is "one hundred forty-seven million, two hundred eighteen thousand, four hundred eighteen".