235425131 has 4 divisors (see below), whose sum is σ = 235969272. Its totient is φ = 234880992.

The previous prime is 235425089. The next prime is 235425139. The reversal of 235425131 is 131524532.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-235425131 is a prime.

It is a super-2 number, since 2×235425131² = 110849984612734322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 235425131.

It is not an unprimeable number, because it can be changed into a prime (235425139) by changing a digit.

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, 271421 + ... + 272286.

It is an arithmetic number, because the mean of its divisors is an integer number (58992318).

Almost surely, 2^235425131 is an apocalyptic number.

235425131 is a deficient number, since it is larger than the sum of its proper divisors (544141).

235425131 is an equidigital number, since it uses as much as digits as its factorization.

235425131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544140.

The product of its digits is 3600, while the sum is 26.

The square root of 235425131 is about 15343.5696954783. The cubic root of 235425131 is about 617.4724807571.

Adding to 235425131 its reverse (131524532), we get a palindrome (366949663).

The spelling of 235425131 in words is "two hundred thirty-five million, four hundred twenty-five thousand, one hundred thirty-one".