140964091 has 2 divisors, whose sum is σ = 140964092. Its totient is φ = 140964090.

The previous prime is 140964077. The next prime is 140964113. The reversal of 140964091 is 190469041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140964091 - 2¹¹ = 140962043 is a prime.

It is not a weakly prime, because it can be changed into another prime (140964001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70482045 + 70482046.

It is an arithmetic number, because the mean of its divisors is an integer number (70482046).

Almost surely, 2^140964091 is an apocalyptic number.

140964091 is a deficient number, since it is larger than the sum of its proper divisors (1).

140964091 is an equidigital number, since it uses as much as digits as its factorization.

140964091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 140964091 is about 11872.8299490896. The cubic root of 140964091 is about 520.4385981521.

The spelling of 140964091 in words is "one hundred forty million, nine hundred sixty-four thousand, ninety-one".