140531867905 has 64 divisors (see below), whose sum is σ = 212303524608. Its totient is φ = 87723048960.

The previous prime is 140531867869. The next prime is 140531868023. The reversal of 140531867905 is 509768135041.

It is not a de Polignac number, because 140531867905 - 2¹⁵ = 140531835137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 939217 + ... + 1078513.

It is an arithmetic number, because the mean of its divisors is an integer number (3317242572).

Almost surely, 2^140531867905 is an apocalyptic number.

It is an amenable number.

140531867905 is a deficient number, since it is larger than the sum of its proper divisors (71771656703).

140531867905 is a wasteful number, since it uses less digits than its factorization.

140531867905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139426.

The product of its (nonzero) digits is 907200, while the sum is 49.

The spelling of 140531867905 in words is "one hundred forty billion, five hundred thirty-one million, eight hundred sixty-seven thousand, nine hundred five".