142551320 has 16 divisors (see below), whose sum is σ = 320740560. Its totient is φ = 57020512.

The previous prime is 142551317. The next prime is 142551347. The reversal of 142551320 is 23155241.

142551320 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1781852 + ... + 1781931.

It is an arithmetic number, because the mean of its divisors is an integer number (20046285).

Almost surely, 2^142551320 is an apocalyptic number.

142551320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142551320 is an abundant number, since it is smaller than the sum of its proper divisors (178189240).

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

142551320 is a wasteful number, since it uses less digits than its factorization.

142551320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3563794 (or 3563790 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 142551320 is about 11939.4857510699. The cubic root of 142551320 is about 522.3846589571.

The spelling of 142551320 in words is "one hundred forty-two million, five hundred fifty-one thousand, three hundred twenty".