142990 has 16 divisors (see below), whose sum is σ = 262080. Its totient is φ = 56160.

The previous prime is 142981. The next prime is 142993. The reversal of 142990 is 99241.

142990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×142990² = 40892280200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 700 + ... + 880.

It is an arithmetic number, because the mean of its divisors is an integer number (16380).

2¹⁴²⁹⁹⁰ is an apocalyptic number.

142990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142990 is a deficient number, since it is larger than the sum of its proper divisors (119090).

142990 is a wasteful number, since it uses less digits than its factorization.

142990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 142990 is about 378.1401856455. The cubic root of 142990 is about 52.2919963331.

The spelling of 142990 in words is "one hundred forty-two thousand, nine hundred ninety".