235140140 has 12 divisors (see below), whose sum is σ = 493794336. Its totient is φ = 94056048.

The previous prime is 235140131. The next prime is 235140179. The reversal of 235140140 is 41041532.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 11757007 = 235140140 / (2 + 3 + 5 + 1 + 4 + 0 + 1 + 4 + 0).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5878484 + ... + 5878523.

It is an arithmetic number, because the mean of its divisors is an integer number (41149528).

Almost surely, 2^235140140 is an apocalyptic number.

235140140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

235140140 is an abundant number, since it is smaller than the sum of its proper divisors (258654196).

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

235140140 is a wasteful number, since it uses less digits than its factorization.

235140140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11757016 (or 11757014 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 235140140 is about 15334.2798983193. The cubic root of 235140140 is about 617.2232222426.

Adding to 235140140 its reverse (41041532), we get a palindrome (276181672).

The spelling of 235140140 in words is "two hundred thirty-five million, one hundred forty thousand, one hundred forty".