142891872 has 48 divisors (see below), whose sum is σ = 376497072. Its totient is φ = 47452160.

The previous prime is 142891841. The next prime is 142891877. The reversal of 142891872 is 278198241.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142891877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24328 + ... + 29624.

It is an arithmetic number, because the mean of its divisors is an integer number (7843689).

Almost surely, 2^142891872 is an apocalyptic number.

142891872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142891872 is an abundant number, since it is smaller than the sum of its proper divisors (233605200).

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

142891872 is a wasteful number, since it uses less digits than its factorization.

142891872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5591 (or 5583 counting only the distinct ones).

The product of its digits is 64512, while the sum is 42.

The square root of 142891872 is about 11953.7388293370. The cubic root of 142891872 is about 522.8003166593.

It can be divided in two parts, 14289 and 1872, that added together give a palindrome (16161).

The spelling of 142891872 in words is "one hundred forty-two million, eight hundred ninety-one thousand, eight hundred seventy-two".