142879700 has 36 divisors (see below), whose sum is σ = 310930620. Its totient is φ = 56989440.

The previous prime is 142879691. The next prime is 142879717. The reversal of 142879700 is 7978241.

It can be written as a sum of positive squares in 6 ways, for example, as 38390416 + 104489284 = 6196^2 + 10222^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37064 + ... + 40736.

Almost surely, 2^142879700 is an apocalyptic number.

142879700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142879700 is an abundant number, since it is smaller than the sum of its proper divisors (168050920).

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

142879700 is a wasteful number, since it uses less digits than its factorization.

142879700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4076 (or 4069 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 142879700 is about 11953.2296890840. The cubic root of 142879700 is about 522.7854716205.

The spelling of 142879700 in words is "one hundred forty-two million, eight hundred seventy-nine thousand, seven hundred".