142890956 has 12 divisors (see below), whose sum is σ = 269294592. Its totient is φ = 65949648.

The previous prime is 142890947. The next prime is 142890961. The reversal of 142890956 is 659098241.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1373900 + ... + 1374003.

It is an arithmetic number, because the mean of its divisors is an integer number (22441216).

Almost surely, 2^142890956 is an apocalyptic number.

It is an amenable number.

142890956 is a deficient number, since it is larger than the sum of its proper divisors (126403636).

142890956 is a wasteful number, since it uses less digits than its factorization.

142890956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2747920 (or 2747918 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 142890956 is about 11953.7005149033. The cubic root of 142890956 is about 522.7991995300.

The spelling of 142890956 in words is "one hundred forty-two million, eight hundred ninety thousand, nine hundred fifty-six".