140423245393 has 2 divisors, whose sum is σ = 140423245394. Its totient is φ = 140423245392.

The previous prime is 140423245327. The next prime is 140423245397. The reversal of 140423245393 is 393542324041.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139052172609 + 1371072784 = 372897^2 + 37028^2 .

It is a cyclic number.

It is not a de Polignac number, because 140423245393 - 2³³ = 131833310801 is a prime.

It is not a weakly prime, because it can be changed into another prime (140423245397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70211622696 + 70211622697.

It is an arithmetic number, because the mean of its divisors is an integer number (70211622697).

Almost surely, 2^140423245393 is an apocalyptic number.

It is an amenable number.

140423245393 is a deficient number, since it is larger than the sum of its proper divisors (1).

140423245393 is an equidigital number, since it uses as much as digits as its factorization.

140423245393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 40.

The spelling of 140423245393 in words is "one hundred forty billion, four hundred twenty-three million, two hundred forty-five thousand, three hundred ninety-three".