142130900 has 18 divisors (see below), whose sum is σ = 308424270. Its totient is φ = 56852320.

The previous prime is 142130881. The next prime is 142130921. The reversal of 142130900 is 9031241.

It can be written as a sum of positive squares in 3 ways, for example, as 10982596 + 131148304 = 3314^2 + 11452^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 710555 + ... + 710754.

Almost surely, 2^142130900 is an apocalyptic number.

142130900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142130900 is an abundant number, since it is smaller than the sum of its proper divisors (166293370).

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

142130900 is a wasteful number, since it uses less digits than its factorization.

142130900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421323 (or 1421316 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 142130900 is about 11921.8664646103. The cubic root of 142130900 is about 521.8706049805.

The spelling of 142130900 in words is "one hundred forty-two million, one hundred thirty thousand, nine hundred".