31234142 has 8 divisors (see below), whose sum is σ = 48117576. Its totient is φ = 15194952.

The previous prime is 31234141. The next prime is 31234183. The reversal of 31234142 is 24143213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31234141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210968 + ... + 211115.

It is an arithmetic number, because the mean of its divisors is an integer number (6014697).

Almost surely, 2^31234142 is an apocalyptic number.

31234142 is a deficient number, since it is larger than the sum of its proper divisors (16883434).

31234142 is a wasteful number, since it uses less digits than its factorization.

31234142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422122.

The product of its digits is 576, while the sum is 20.

The square root of 31234142 is about 5588.7513811226. The cubic root of 31234142 is about 314.9269739175.

Adding to 31234142 its reverse (24143213), we get a palindrome (55377355).

The spelling of 31234142 in words is "thirty-one million, two hundred thirty-four thousand, one hundred forty-two".