140142012500 has 72 divisors (see below), whose sum is σ = 350332827264. Its totient is φ = 48048660000.

The previous prime is 140142012443. The next prime is 140142012523. The reversal of 140142012500 is 5210241041.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 713312 + ... + 888311.

It is an arithmetic number, because the mean of its divisors is an integer number (4865733712).

Almost surely, 2^140142012500 is an apocalyptic number.

140142012500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140142012500 is an abundant number, since it is smaller than the sum of its proper divisors (210190814764).

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

140142012500 is an equidigital number, since it uses as much as digits as its factorization.

140142012500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601659 (or 1601637 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 140142012500 its reverse (5210241041), we get a palindrome (145352253541).

The spelling of 140142012500 in words is "one hundred forty billion, one hundred forty-two million, twelve thousand, five hundred".