140520491517 has 96 divisors (see below), whose sum is σ = 232635002880. Its totient is φ = 75011650560.

The previous prime is 140520491509. The next prime is 140520491519. The reversal of 140520491517 is 715194025041.

It is a happy number.

It is not a de Polignac number, because 140520491517 - 2³ = 140520491509 is a prime.

It is a super-2 number, since 2×140520491517² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140520491519) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 89674068 + ... + 89675634.

It is an arithmetic number, because the mean of its divisors is an integer number (2423281280).

Almost surely, 2^140520491517 is an apocalyptic number.

It is an amenable number.

140520491517 is a deficient number, since it is larger than the sum of its proper divisors (92114511363).

140520491517 is a wasteful number, since it uses less digits than its factorization.

140520491517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2031 (or 2024 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 39.

The spelling of 140520491517 in words is "one hundred forty billion, five hundred twenty million, four hundred ninety-one thousand, five hundred seventeen".