140121531990290 has 16 divisors (see below), whose sum is σ = 259035480761112. Its totient is φ = 54533785423104.

The previous prime is 140121531990289. The next prime is 140121531990311. The reversal of 140121531990290 is 92099135121041.

It can be written as a sum of positive squares in 4 ways, for example, as 96882267008641 + 43239264981649 = 9842879^2 + 6575657^2 .

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, 189353421239 + ... + 189353421978.

Almost surely, 2^{140121531990290} is an apocalyptic number.

140121531990290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140121531990290 is a deficient number, since it is larger than the sum of its proper divisors (118913948770822).

140121531990290 is a wasteful number, since it uses less digits than its factorization.

140121531990290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378706843261.

The product of its (nonzero) digits is 174960, while the sum is 47.

The spelling of 140121531990290 in words is "one hundred forty trillion, one hundred twenty-one billion, five hundred thirty-one million, nine hundred ninety thousand, two hundred ninety".