142118390 has 16 divisors (see below), whose sum is σ = 259632432. Its totient is φ = 55998624.

The previous prime is 142118381. The next prime is 142118401. The reversal of 142118390 is 93811241.

It is a Curzon number.

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, 105389 + ... + 106728.

It is an arithmetic number, because the mean of its divisors is an integer number (16227027).

Almost surely, 2^142118390 is an apocalyptic number.

142118390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142118390 is a deficient number, since it is larger than the sum of its proper divisors (117514042).

142118390 is a wasteful number, since it uses less digits than its factorization.

142118390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212191.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 142118390 is about 11921.3417868963. The cubic root of 142118390 is about 521.8552932905.

The spelling of 142118390 in words is "one hundred forty-two million, one hundred eighteen thousand, three hundred ninety".