31950745 has 8 divisors (see below), whose sum is σ = 38384640. Its totient is φ = 25531440.

The previous prime is 31950731. The next prime is 31950773. The reversal of 31950745 is 54705913.

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

It is a de Polignac number, because none of the positive numbers 2^k-31950745 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31950745.

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, 1960 + ... + 8230.

It is an arithmetic number, because the mean of its divisors is an integer number (4798080).

Almost surely, 2^31950745 is an apocalyptic number.

It is an amenable number.

31950745 is a deficient number, since it is larger than the sum of its proper divisors (6433895).

31950745 is a wasteful number, since it uses less digits than its factorization.

31950745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7295.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 31950745 is about 5652.4990048650. The cubic root of 31950745 is about 317.3172362499.

The spelling of 31950745 in words is "thirty-one million, nine hundred fifty thousand, seven hundred forty-five".