162240144 has 40 divisors (see below), whose sum is σ = 457223712. Its totient is φ = 49163520.

The previous prime is 162240139. The next prime is 162240149. The reversal of 162240144 is 441042261.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (162240139) and next prime (162240149).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (162240149) 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 7 ways as a sum of consecutive naturals, for example, 153109 + ... + 154164.

Almost surely, 2^162240144 is an apocalyptic number.

It is an amenable number.

162240144 is an abundant number, since it is smaller than the sum of its proper divisors (294983568).

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

162240144 is a wasteful number, since it uses less digits than its factorization.

162240144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307295 (or 307289 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 162240144 is about 12737.3523151399. The cubic root of 162240144 is about 545.4054094324.

The spelling of 162240144 in words is "one hundred sixty-two million, two hundred forty thousand, one hundred forty-four".