140108982261 has 4 divisors (see below), whose sum is σ = 186811976352. Its totient is φ = 93405988172.

The previous prime is 140108982253. The next prime is 140108982317. The reversal of 140108982261 is 162289801041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 140108982261 - 2³ = 140108982253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140108982661) 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, 23351497041 + ... + 23351497046.

It is an arithmetic number, because the mean of its divisors is an integer number (46702994088).

Almost surely, 2^140108982261 is an apocalyptic number.

It is an amenable number.

140108982261 is a deficient number, since it is larger than the sum of its proper divisors (46702994091).

140108982261 is an equidigital number, since it uses as much as digits as its factorization.

140108982261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46702994090.

The product of its (nonzero) digits is 55296, while the sum is 42.

The spelling of 140108982261 in words is "one hundred forty billion, one hundred eight million, nine hundred eighty-two thousand, two hundred sixty-one".