142245392 has 20 divisors (see below), whose sum is σ = 291812796. Its totient is φ = 66938880.

The previous prime is 142245349. The next prime is 142245403. The reversal of 142245392 is 293542241.

It can be written as a sum of positive squares in 2 ways, for example, as 45104656 + 97140736 = 6716^2 + 9856^2 .

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 3 ways as a sum of consecutive naturals, for example, 261209 + ... + 261752.

Almost surely, 2^142245392 is an apocalyptic number.

It is an amenable number.

142245392 is an abundant number, since it is smaller than the sum of its proper divisors (149567404).

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

142245392 is a wasteful number, since it uses less digits than its factorization.

142245392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522986 (or 522980 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 142245392 is about 11926.6672629029. The cubic root of 142245392 is about 522.0106964333.

The spelling of 142245392 in words is "one hundred forty-two million, two hundred forty-five thousand, three hundred ninety-two".