31696045 has 4 divisors (see below), whose sum is σ = 38035260. Its totient is φ = 25356832.

The previous prime is 31696037. The next prime is 31696051. The reversal of 31696045 is 54069613.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11964681 + 19731364 = 3459^2 + 4442^2 .

It is a cyclic number.

It is not a de Polignac number, because 31696045 - 2³ = 31696037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31696045.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3169600 + ... + 3169609.

It is an arithmetic number, because the mean of its divisors is an integer number (9508815).

Almost surely, 2^31696045 is an apocalyptic number.

It is an amenable number.

31696045 is a deficient number, since it is larger than the sum of its proper divisors (6339215).

31696045 is an equidigital number, since it uses as much as digits as its factorization.

31696045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6339214.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 31696045 is about 5629.9240669835. The cubic root of 31696045 is about 316.4718056323.

The spelling of 31696045 in words is "thirty-one million, six hundred ninety-six thousand, forty-five".