140250340531 has 16 divisors (see below), whose sum is σ = 166830508800. Its totient is φ = 115357138848.

The previous prime is 140250340519. The next prime is 140250340541. The reversal of 140250340531 is 135043052041.

It is a de Polignac number, because none of the positive numbers 2^k-140250340531 is a prime.

It is a super-2 number, since 2×140250340531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140250340531.

It is not an unprimeable number, because it can be changed into a prime (140250340541) 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, 2086201 + ... + 2152378.

It is an arithmetic number, because the mean of its divisors is an integer number (10426906800).

Almost surely, 2^140250340531 is an apocalyptic number.

140250340531 is a deficient number, since it is larger than the sum of its proper divisors (26580168269).

140250340531 is a wasteful number, since it uses less digits than its factorization.

140250340531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4238778.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 140250340531 its reverse (135043052041), we get a palindrome (275293392572).

The spelling of 140250340531 in words is "one hundred forty billion, two hundred fifty million, three hundred forty thousand, five hundred thirty-one".