142137830 has 16 divisors (see below), whose sum is σ = 256119840. Its totient is φ = 56794752.

The previous prime is 142137817. The next prime is 142137847. The reversal of 142137830 is 38731241.

It is a junction number, because it is equal to n+sod(n) for n = 142137793 and 142137802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3047 + ... + 17133.

It is an arithmetic number, because the mean of its divisors is an integer number (16007490).

Almost surely, 2^142137830 is an apocalyptic number.

142137830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142137830 is a deficient number, since it is larger than the sum of its proper divisors (113982010).

142137830 is a wasteful number, since it uses less digits than its factorization.

142137830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15103.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 142137830 is about 11922.1571034775. The cubic root of 142137830 is about 521.8790866091.

The spelling of 142137830 in words is "one hundred forty-two million, one hundred thirty-seven thousand, eight hundred thirty".