142992090 has 24 divisors (see below), whose sum is σ = 371779668. Its totient is φ = 38131200.

The previous prime is 142992053. The next prime is 142992103. The reversal of 142992090 is 90299241.

It can be written as a sum of positive squares in 2 ways, for example, as 130439241 + 12552849 = 11421^2 + 3543^2 .

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 11 ways as a sum of consecutive naturals, for example, 794311 + ... + 794490.

Almost surely, 2^142992090 is an apocalyptic number.

142992090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142992090 is an abundant number, since it is smaller than the sum of its proper divisors (228787578).

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

142992090 is a wasteful number, since it uses less digits than its factorization.

142992090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1588814 (or 1588811 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 142992090 is about 11957.9300048127. The cubic root of 142992090 is about 522.9225110553.

The spelling of 142992090 in words is "one hundred forty-two million, nine hundred ninety-two thousand, ninety".