31422245045 has 16 divisors (see below), whose sum is σ = 38133670320. Its totient is φ = 24854237184.

The previous prime is 31422245033. The next prime is 31422245047. The reversal of 31422245045 is 54054222413.

It can be written as a sum of positive squares in 8 ways, for example, as 194407249 + 31227837796 = 13943^2 + 176714^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31422245045 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31422245047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163097 + ... + 299073.

It is an arithmetic number, because the mean of its divisors is an integer number (2383354395).

Almost surely, 2^31422245045 is an apocalyptic number.

It is an amenable number.

31422245045 is a deficient number, since it is larger than the sum of its proper divisors (6711425275).

31422245045 is a wasteful number, since it uses less digits than its factorization.

31422245045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136504.

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 31422245045 its reverse (54054222413), we get a palindrome (85476467458).

The spelling of 31422245045 in words is "thirty-one billion, four hundred twenty-two million, two hundred forty-five thousand, forty-five".