140231135 has 24 divisors (see below), whose sum is σ = 190958208. Its totient is φ = 98683200.

The previous prime is 140231107. The next prime is 140231173. The reversal of 140231135 is 531132041.

It is not a de Polignac number, because 140231135 - 2⁶ = 140231071 is a prime.

It is a Duffinian number.

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, 15017 + ... + 22493.

It is an arithmetic number, because the mean of its divisors is an integer number (7956592).

Almost surely, 2^140231135 is an apocalyptic number.

140231135 is a deficient number, since it is larger than the sum of its proper divisors (50727073).

140231135 is a wasteful number, since it uses less digits than its factorization.

140231135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7535 (or 7524 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 140231135 is about 11841.9227746173. The cubic root of 140231135 is about 519.5350071498.

Adding to 140231135 its reverse (531132041), we get a palindrome (671363176).

The spelling of 140231135 in words is "one hundred forty million, two hundred thirty-one thousand, one hundred thirty-five".