140412501161 has 4 divisors (see below), whose sum is σ = 141125255172. Its totient is φ = 139699747152.

The previous prime is 140412501149. The next prime is 140412501167. The reversal of 140412501161 is 161105214041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 96236448400 + 44176052761 = 310220^2 + 210181^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140412501161 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 140412501161.

It is not an unprimeable number, because it can be changed into a prime (140412501167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356376710 + ... + 356377103.

It is an arithmetic number, because the mean of its divisors is an integer number (35281313793).

Almost surely, 2^140412501161 is an apocalyptic number.

It is an amenable number.

140412501161 is a deficient number, since it is larger than the sum of its proper divisors (712754011).

140412501161 is an equidigital number, since it uses as much as digits as its factorization.

140412501161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712754010.

The product of its (nonzero) digits is 960, while the sum is 26.

The spelling of 140412501161 in words is "one hundred forty billion, four hundred twelve million, five hundred one thousand, one hundred sixty-one".