231434142 has 32 divisors (see below), whose sum is σ = 483985152. Its totient is φ = 73639104.

The previous prime is 231434131. The next prime is 231434179. The reversal of 231434142 is 241434132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79578 + ... + 82434.

It is an arithmetic number, because the mean of its divisors is an integer number (15124536).

Almost surely, 2^231434142 is an apocalyptic number.

231434142 is an abundant number, since it is smaller than the sum of its proper divisors (252551010).

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

231434142 is a wasteful number, since it uses less digits than its factorization.

231434142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3472.

The product of its digits is 2304, while the sum is 24.

The square root of 231434142 is about 15212.9596725949. The cubic root of 231434142 is about 613.9633908860.

Adding to 231434142 its reverse (241434132), we get a palindrome (472868274).

The spelling of 231434142 in words is "two hundred thirty-one million, four hundred thirty-four thousand, one hundred forty-two".