140314615261 has 4 divisors (see below), whose sum is σ = 145153050300. Its totient is φ = 135476180224.

The previous prime is 140314615253. The next prime is 140314615379. The reversal of 140314615261 is 162516413041.

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 89326265625 + 50988349636 = 298875^2 + 225806^2 .

It is a cyclic number.

It is not a de Polignac number, because 140314615261 - 2³ = 140314615253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140314615201) 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, 2419217476 + ... + 2419217533.

It is an arithmetic number, because the mean of its divisors is an integer number (36288262575).

Almost surely, 2^140314615261 is an apocalyptic number.

It is an amenable number.

140314615261 is a deficient number, since it is larger than the sum of its proper divisors (4838435039).

140314615261 is an equidigital number, since it uses as much as digits as its factorization.

140314615261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4838435038.

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 140314615261 in words is "one hundred forty billion, three hundred fourteen million, six hundred fifteen thousand, two hundred sixty-one".