31742134 has 8 divisors (see below), whose sum is σ = 47659680. Its totient is φ = 15855576.

The previous prime is 31742107. The next prime is 31742147. The reversal of 31742134 is 43124713.

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

It is a junction number, because it is equal to n+sod(n) for n = 31742099 and 31742108.

It is a congruent number.

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, 4989 + ... + 9400.

It is an arithmetic number, because the mean of its divisors is an integer number (5957460).

Almost surely, 2^31742134 is an apocalyptic number.

31742134 is a deficient number, since it is larger than the sum of its proper divisors (15917546).

31742134 is a wasteful number, since it uses less digits than its factorization.

31742134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15494.

The product of its digits is 2016, while the sum is 25.

The square root of 31742134 is about 5634.0157969250. The cubic root of 31742134 is about 316.6251244982.

Adding to 31742134 its reverse (43124713), we get a palindrome (74866847).

The spelling of 31742134 in words is "thirty-one million, seven hundred forty-two thousand, one hundred thirty-four".