142313997 has 32 divisors (see below), whose sum is σ = 221900800. Its totient is φ = 79455168.

The previous prime is 142313989. The next prime is 142313999. The reversal of 142313997 is 799313241.

It is not a de Polignac number, because 142313997 - 2³ = 142313989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142313999) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 180438 + ... + 181224.

It is an arithmetic number, because the mean of its divisors is an integer number (6934400).

Almost surely, 2^142313997 is an apocalyptic number.

It is an amenable number.

142313997 is a deficient number, since it is larger than the sum of its proper divisors (79586803).

142313997 is a wasteful number, since it uses less digits than its factorization.

142313997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985.

The product of its digits is 40824, while the sum is 39.

The square root of 142313997 is about 11929.5430339976. The cubic root of 142313997 is about 522.0946049227.

The spelling of 142313997 in words is "one hundred forty-two million, three hundred thirteen thousand, nine hundred ninety-seven".