142990956 has 36 divisors (see below), whose sum is σ = 361834200. Its totient is φ = 47612928.

The previous prime is 142990943. The next prime is 142990957. The reversal of 142990956 is 659099241.

142990956 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (142990957) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49315 + ... + 52133.

It is an arithmetic number, because the mean of its divisors is an integer number (10050950).

Almost surely, 2^142990956 is an apocalyptic number.

It is an amenable number.

142990956 is an abundant number, since it is smaller than the sum of its proper divisors (218843244).

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

142990956 is a wasteful number, since it uses less digits than its factorization.

142990956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4238 (or 4233 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The square root of 142990956 is about 11957.8825884853. The cubic root of 142990956 is about 522.9211287045.

The spelling of 142990956 in words is "one hundred forty-two million, nine hundred ninety thousand, nine hundred fifty-six".