31274345 has 8 divisors (see below), whose sum is σ = 37687680. Its totient is φ = 24913840.

The previous prime is 31274311. The next prime is 31274351. The reversal of 31274345 is 54347213.

It is a happy number.

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

It is not a de Polignac number, because 31274345 - 2¹⁶ = 31208809 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11891 + ... + 14280.

It is an arithmetic number, because the mean of its divisors is an integer number (4710960).

Almost surely, 2^31274345 is an apocalyptic number.

It is an amenable number.

31274345 is a deficient number, since it is larger than the sum of its proper divisors (6413335).

31274345 is a wasteful number, since it uses less digits than its factorization.

31274345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26415.

The product of its digits is 10080, while the sum is 29.

The square root of 31274345 is about 5592.3470028245. The cubic root of 31274345 is about 315.0620353172.

The spelling of 31274345 in words is "thirty-one million, two hundred seventy-four thousand, three hundred forty-five".