147205506 has 24 divisors (see below), whose sum is σ = 342478800. Its totient is φ = 42058632.

The previous prime is 147205493. The next prime is 147205517. The reversal of 147205506 is 605502741.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 250056 + ... + 250643.

It is an arithmetic number, because the mean of its divisors is an integer number (14269950).

Almost surely, 2^147205506 is an apocalyptic number.

147205506 is an abundant number, since it is smaller than the sum of its proper divisors (195273294).

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

147205506 is a wasteful number, since it uses less digits than its factorization.

147205506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500718 (or 500711 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 147205506 is about 12132.8276176660. The cubic root of 147205506 is about 528.0090319277.

The spelling of 147205506 in words is "one hundred forty-seven million, two hundred five thousand, five hundred six".