235131142 has 4 divisors (see below), whose sum is σ = 352696716. Its totient is φ = 117565570.

The previous prime is 235131079. The next prime is 235131151. The reversal of 235131142 is 241131532.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58782784 + ... + 58782787.

It is an arithmetic number, because the mean of its divisors is an integer number (88174179).

Almost surely, 2^235131142 is an apocalyptic number.

235131142 is a deficient number, since it is larger than the sum of its proper divisors (117565574).

235131142 is a wasteful number, since it uses less digits than its factorization.

235131142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117565573.

The product of its digits is 720, while the sum is 22.

The square root of 235131142 is about 15333.9865005810. The cubic root of 235131142 is about 617.2153491428.

Adding to 235131142 its reverse (241131532), we get a palindrome (476262674).

The spelling of 235131142 in words is "two hundred thirty-five million, one hundred thirty-one thousand, one hundred forty-two".