140242165523 has 2 divisors, whose sum is σ = 140242165524. Its totient is φ = 140242165522.

The previous prime is 140242165519. The next prime is 140242165549. The reversal of 140242165523 is 325561242041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140242165523 - 2² = 140242165519 is a prime.

It is not a weakly prime, because it can be changed into another prime (140242165423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70121082761 + 70121082762.

It is an arithmetic number, because the mean of its divisors is an integer number (70121082762).

Almost surely, 2^140242165523 is an apocalyptic number.

140242165523 is a deficient number, since it is larger than the sum of its proper divisors (1).

140242165523 is an equidigital number, since it uses as much as digits as its factorization.

140242165523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 140242165523 in words is "one hundred forty billion, two hundred forty-two million, one hundred sixty-five thousand, five hundred twenty-three".