140730907 has 2 divisors, whose sum is σ = 140730908. Its totient is φ = 140730906.

The previous prime is 140730893. The next prime is 140730923. The reversal of 140730907 is 709037041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140730907 - 2²⁷ = 6513179 is a prime.

It is not a weakly prime, because it can be changed into another prime (140730937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70365453 + 70365454.

It is an arithmetic number, because the mean of its divisors is an integer number (70365454).

Almost surely, 2^140730907 is an apocalyptic number.

140730907 is a deficient number, since it is larger than the sum of its proper divisors (1).

140730907 is an equidigital number, since it uses as much as digits as its factorization.

140730907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 140730907 is about 11863.0058164025. The cubic root of 140730907 is about 520.1514684491.

Adding to 140730907 its reverse (709037041), we get a palindrome (849767948).

The spelling of 140730907 in words is "one hundred forty million, seven hundred thirty thousand, nine hundred seven".