142645550 has 24 divisors (see below), whose sum is σ = 267679296. Its totient is φ = 56551040.

The previous prime is 142645549. The next prime is 142645561. The reversal of 142645550 is 55546241.

142645550 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6974 + ... + 18273.

It is an arithmetic number, because the mean of its divisors is an integer number (11153304).

Almost surely, 2^142645550 is an apocalyptic number.

142645550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142645550 is a deficient number, since it is larger than the sum of its proper divisors (125033746).

142645550 is a wasteful number, since it uses less digits than its factorization.

142645550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25372 (or 25367 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 142645550 is about 11943.4312490172. The cubic root of 142645550 is about 522.4997367275.

The spelling of 142645550 in words is "one hundred forty-two million, six hundred forty-five thousand, five hundred fifty".