140312400253 has 2 divisors, whose sum is σ = 140312400254. Its totient is φ = 140312400252.

The previous prime is 140312400233. The next prime is 140312400259. The reversal of 140312400253 is 352004213041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76456121049 + 63856279204 = 276507^2 + 252698^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140312400253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140312400259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70156200126 + 70156200127.

It is an arithmetic number, because the mean of its divisors is an integer number (70156200127).

Almost surely, 2^140312400253 is an apocalyptic number.

It is an amenable number.

140312400253 is a deficient number, since it is larger than the sum of its proper divisors (1).

140312400253 is an equidigital number, since it uses as much as digits as its factorization.

140312400253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 140312400253 its reverse (352004213041), we get a palindrome (492316613294).

The spelling of 140312400253 in words is "one hundred forty billion, three hundred twelve million, four hundred thousand, two hundred fifty-three".