140140431091 has 2 divisors, whose sum is σ = 140140431092. Its totient is φ = 140140431090.

The previous prime is 140140431071. The next prime is 140140431163. The reversal of 140140431091 is 190134041041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140140431091 - 2¹¹ = 140140429043 is a prime.

It is not a weakly prime, because it can be changed into another prime (140140431071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70070215545 + 70070215546.

It is an arithmetic number, because the mean of its divisors is an integer number (70070215546).

Almost surely, 2^140140431091 is an apocalyptic number.

140140431091 is a deficient number, since it is larger than the sum of its proper divisors (1).

140140431091 is an equidigital number, since it uses as much as digits as its factorization.

140140431091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 140140431091 in words is "one hundred forty billion, one hundred forty million, four hundred thirty-one thousand, ninety-one".