142207988 has 24 divisors (see below), whose sum is σ = 279662208. Its totient is φ = 62780256.

The previous prime is 142207973. The next prime is 142207993. The reversal of 142207988 is 889702241.

It is a super-2 number, since 2×142207988² = 40446223702016288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58256 + ... + 60647.

It is an arithmetic number, because the mean of its divisors is an integer number (11652592).

Almost surely, 2^142207988 is an apocalyptic number.

It is an amenable number.

142207988 is a deficient number, since it is larger than the sum of its proper divisors (137454220).

142207988 is a wasteful number, since it uses less digits than its factorization.

142207988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118943 (or 118941 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 142207988 is about 11925.0990771565. The cubic root of 142207988 is about 521.9649374824.

The spelling of 142207988 in words is "one hundred forty-two million, two hundred seven thousand, nine hundred eighty-eight".