140142240315397 has 2 divisors, whose sum is σ = 140142240315398. Its totient is φ = 140142240315396.

The previous prime is 140142240315373. The next prime is 140142240315433. The reversal of 140142240315397 is 793513042241041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96583903499521 + 43558336815876 = 9827711^2 + 6599874^2 .

It is a cyclic number.

It is not a de Polignac number, because 140142240315397 - 2²³ = 140142231926789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140142240315367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70071120157698 + 70071120157699.

It is an arithmetic number, because the mean of its divisors is an integer number (70071120157699).

Almost surely, 2^{140142240315397} is an apocalyptic number.

It is an amenable number.

140142240315397 is a deficient number, since it is larger than the sum of its proper divisors (1).

140142240315397 is an equidigital number, since it uses as much as digits as its factorization.

140142240315397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 46.

The spelling of 140142240315397 in words is "one hundred forty trillion, one hundred forty-two billion, two hundred forty million, three hundred fifteen thousand, three hundred ninety-seven".