31719134 has 8 divisors (see below), whose sum is σ = 47605008. Its totient is φ = 15850800.

The previous prime is 31719133. The next prime is 31719137. The reversal of 31719134 is 43191713.

It is a happy number.

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

It is a super-2 number, since 2×31719134² = 2012206923419912, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31719097 and 31719106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31719133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1994 + ... + 8210.

It is an arithmetic number, because the mean of its divisors is an integer number (5950626).

Almost surely, 2^31719134 is an apocalyptic number.

31719134 is a deficient number, since it is larger than the sum of its proper divisors (15885874).

31719134 is a wasteful number, since it uses less digits than its factorization.

31719134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8770.

The product of its digits is 2268, while the sum is 29.

The square root of 31719134 is about 5631.9742542025. The cubic root of 31719134 is about 316.5486316629.

The spelling of 31719134 in words is "thirty-one million, seven hundred nineteen thousand, one hundred thirty-four".