152218407 has 32 divisors (see below), whose sum is σ = 231356160. Its totient is φ = 88197120.

The previous prime is 152218379. The next prime is 152218433. The reversal of 152218407 is 704812251.

It is not a de Polignac number, because 152218407 - 2²³ = 143829799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152218457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70983 + ... + 73095.

It is an arithmetic number, because the mean of its divisors is an integer number (7229880).

Almost surely, 2^152218407 is an apocalyptic number.

152218407 is a deficient number, since it is larger than the sum of its proper divisors (79137753).

152218407 is a wasteful number, since it uses less digits than its factorization.

152218407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2223.

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 152218407 is about 12337.6823998675. The cubic root of 152218407 is about 533.9358203949.

The spelling of 152218407 in words is "one hundred fifty-two million, two hundred eighteen thousand, four hundred seven".