140263601 has 2 divisors, whose sum is σ = 140263602. Its totient is φ = 140263600.

The previous prime is 140263579. The next prime is 140263639. The reversal of 140263601 is 106362041.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139263601 + 1000000 = 11801^2 + 1000^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140263601 is a prime.

It is not a weakly prime, because it can be changed into another prime (140263901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70131800 + 70131801.

It is an arithmetic number, because the mean of its divisors is an integer number (70131801).

Almost surely, 2^140263601 is an apocalyptic number.

It is an amenable number.

140263601 is a deficient number, since it is larger than the sum of its proper divisors (1).

140263601 is an equidigital number, since it uses as much as digits as its factorization.

140263601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 140263601 is about 11843.2935030759. The cubic root of 140263601 is about 519.5750979186.

The spelling of 140263601 in words is "one hundred forty million, two hundred sixty-three thousand, six hundred one".