140505515140 has 24 divisors (see below), whose sum is σ = 295449342552. Its totient is φ = 56128346880.

The previous prime is 140505515093. The next prime is 140505515177. The reversal of 140505515140 is 41515505041.

It can be written as a sum of positive squares in 4 ways, for example, as 1729894464 + 138775620676 = 41592^2 + 372526^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4600599 + ... + 4631038.

It is an arithmetic number, because the mean of its divisors is an integer number (12310389273).

Almost surely, 2^140505515140 is an apocalyptic number.

140505515140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140505515140 is an abundant number, since it is smaller than the sum of its proper divisors (154943827412).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140505515140 is a wasteful number, since it uses less digits than its factorization.

140505515140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9232407 (or 9232405 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 31.

The spelling of 140505515140 in words is "one hundred forty billion, five hundred five million, five hundred fifteen thousand, one hundred forty".