140015505531 has 16 divisors (see below), whose sum is σ = 203666607360. Its totient is φ = 84854677920.

The previous prime is 140015505529. The next prime is 140015505547. The reversal of 140015505531 is 135505510041.

It is not a de Polignac number, because 140015505531 - 2¹ = 140015505529 is a prime.

It is a super-2 number, since 2×140015505531² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140015505551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1041441 + ... + 1168173.

It is an arithmetic number, because the mean of its divisors is an integer number (12729162960).

Almost surely, 2^140015505531 is an apocalyptic number.

140015505531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

140015505531 is a deficient number, since it is larger than the sum of its proper divisors (63651101829).

140015505531 is a wasteful number, since it uses less digits than its factorization.

140015505531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160226.

The product of its (nonzero) digits is 7500, while the sum is 30.

It can be divided in two parts, 140015 and 505531, that added together give a palindrome (645546).

The spelling of 140015505531 in words is "one hundred forty billion, fifteen million, five hundred five thousand, five hundred thirty-one".