140172154131626 has 8 divisors (see below), whose sum is σ = 210622630213380. Its totient is φ = 69964610727168.

The previous prime is 140172154131623. The next prime is 140172154131637. The reversal of 140172154131626 is 626131451271041.

It can be written as a sum of positive squares in 2 ways, for example, as 80515608356401 + 59656545775225 = 8973049^2 + 7723765^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (140172154131623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60733167881 + ... + 60733170188.

Almost surely, 2^{140172154131626} is an apocalyptic number.

140172154131626 is a deficient number, since it is larger than the sum of its proper divisors (70450476081754).

140172154131626 is a wasteful number, since it uses less digits than its factorization.

140172154131626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121466338648.

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 140172154131626 in words is "one hundred forty trillion, one hundred seventy-two billion, one hundred fifty-four million, one hundred thirty-one thousand, six hundred twenty-six".