142658990 has 32 divisors (see below), whose sum is σ = 263088000. Its totient is φ = 55680768.

The previous prime is 142658983. The next prime is 142659029. The reversal of 142658990 is 99856241.

142658990 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69296 + ... + 71324.

It is an arithmetic number, because the mean of its divisors is an integer number (8221500).

Almost surely, 2^142658990 is an apocalyptic number.

142658990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142658990 is a deficient number, since it is larger than the sum of its proper divisors (120429010).

142658990 is a wasteful number, since it uses less digits than its factorization.

142658990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2204.

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 142658990 is about 11943.9938881431. The cubic root of 142658990 is about 522.5161461094.

The spelling of 142658990 in words is "one hundred forty-two million, six hundred fifty-eight thousand, nine hundred ninety".