140691863227 has 2 divisors, whose sum is σ = 140691863228. Its totient is φ = 140691863226.

The previous prime is 140691863203. The next prime is 140691863239. The reversal of 140691863227 is 722368196041.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140691863227 - 2²⁷ = 140557645499 is a prime.

It is not a weakly prime, because it can be changed into another prime (140691863027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70345931613 + 70345931614.

It is an arithmetic number, because the mean of its divisors is an integer number (70345931614).

Almost surely, 2^140691863227 is an apocalyptic number.

140691863227 is a deficient number, since it is larger than the sum of its proper divisors (1).

140691863227 is an equidigital number, since it uses as much as digits as its factorization.

140691863227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 140691863227 in words is "one hundred forty billion, six hundred ninety-one million, eight hundred sixty-three thousand, two hundred twenty-seven".