140100120581 has 2 divisors, whose sum is σ = 140100120582. Its totient is φ = 140100120580.

The previous prime is 140100120439. The next prime is 140100120617. The reversal of 140100120581 is 185021001041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125780169025 + 14319951556 = 354655^2 + 119666^2 .

It is an emirp because it is prime and its reverse (185021001041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140100120581 - 2¹⁴ = 140100104197 is a prime.

It is a super-2 number, since 2×140100120581² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140100150581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70050060290 + 70050060291.

It is an arithmetic number, because the mean of its divisors is an integer number (70050060291).

Almost surely, 2^140100120581 is an apocalyptic number.

It is an amenable number.

140100120581 is a deficient number, since it is larger than the sum of its proper divisors (1).

140100120581 is an equidigital number, since it uses as much as digits as its factorization.

140100120581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 23.

The spelling of 140100120581 in words is "one hundred forty billion, one hundred million, one hundred twenty thousand, five hundred eighty-one".