31952144090 has 8 divisors (see below), whose sum is σ = 57513859380. Its totient is φ = 12780857632.

The previous prime is 31952144071. The next prime is 31952144093. The reversal of 31952144090 is 9044125913.

It can be written as a sum of positive squares in 2 ways, for example, as 31524357601 + 427786489 = 177551^2 + 20683^2 .

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

It is not an unprimeable number, because it can be changed into a prime (31952144093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1597607195 + ... + 1597607214.

Almost surely, 2^31952144090 is an apocalyptic number.

31952144090 is a deficient number, since it is larger than the sum of its proper divisors (25561715290).

31952144090 is a wasteful number, since it uses less digits than its factorization.

31952144090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3195214416.

The product of its (nonzero) digits is 38880, while the sum is 38.

The spelling of 31952144090 in words is "thirty-one billion, nine hundred fifty-two million, one hundred forty-four thousand, ninety".