140121420135 has 8 divisors (see below), whose sum is σ = 224194272240. Its totient is φ = 74731424064.

The previous prime is 140121420053. The next prime is 140121420137. The reversal of 140121420135 is 531024121041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 140121420135 - 2²⁵ = 140087865703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140121420137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4670713990 + ... + 4670714019.

It is an arithmetic number, because the mean of its divisors is an integer number (28024284030).

Almost surely, 2^140121420135 is an apocalyptic number.

140121420135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

140121420135 is a deficient number, since it is larger than the sum of its proper divisors (84072852105).

140121420135 is an equidigital number, since it uses as much as digits as its factorization.

140121420135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9341428017.

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 140121420135 its reverse (531024121041), we get a palindrome (671145541176).

The spelling of 140121420135 in words is "one hundred forty billion, one hundred twenty-one million, four hundred twenty thousand, one hundred thirty-five".