140125631257 has 2 divisors, whose sum is σ = 140125631258. Its totient is φ = 140125631256.

The previous prime is 140125631249. The next prime is 140125631279. The reversal of 140125631257 is 752136521041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 140058571536 + 67059721 = 374244^2 + 8189^2 .

It is a cyclic number.

It is not a de Polignac number, because 140125631257 - 2³ = 140125631249 is a prime.

It is not a weakly prime, because it can be changed into another prime (140125631357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70062815628 + 70062815629.

It is an arithmetic number, because the mean of its divisors is an integer number (70062815629).

Almost surely, 2^140125631257 is an apocalyptic number.

It is an amenable number.

140125631257 is a deficient number, since it is larger than the sum of its proper divisors (1).

140125631257 is an equidigital number, since it uses as much as digits as its factorization.

140125631257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 37.

The spelling of 140125631257 in words is "one hundred forty billion, one hundred twenty-five million, six hundred thirty-one thousand, two hundred fifty-seven".