140520491519 has 2 divisors, whose sum is σ = 140520491520. Its totient is φ = 140520491518.

The previous prime is 140520491509. The next prime is 140520491543. The reversal of 140520491519 is 915194025041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140520491519 - 2²⁴ = 140503714303 is a prime.

It is a super-2 number, since 2×140520491519² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140520491509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70260245759 + 70260245760.

It is an arithmetic number, because the mean of its divisors is an integer number (70260245760).

Almost surely, 2^140520491519 is an apocalyptic number.

140520491519 is a deficient number, since it is larger than the sum of its proper divisors (1).

140520491519 is an equidigital number, since it uses as much as digits as its factorization.

140520491519 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 41.

The spelling of 140520491519 in words is "one hundred forty billion, five hundred twenty million, four hundred ninety-one thousand, five hundred nineteen".