3131885497 has 8 divisors (see below), whose sum is σ = 3384315144. Its totient is φ = 2881100928.

The previous prime is 3131885489. The next prime is 3131885507. The reversal of 3131885497 is 7945881313.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1253443216 + 1878442281 = 35404^2 + 43341^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 3131885497 - 2³ = 3131885489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3131885497.

It is not an unprimeable number, because it can be changed into a prime (3131885417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407308 + ... + 414925.

It is an arithmetic number, because the mean of its divisors is an integer number (423039393).

Almost surely, 2^3131885497 is an apocalyptic number.

It is an amenable number.

3131885497 is a deficient number, since it is larger than the sum of its proper divisors (252429647).

3131885497 is a wasteful number, since it uses less digits than its factorization.

3131885497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822539.

The product of its digits is 725760, while the sum is 49.

The square root of 3131885497 is about 55963.2513083363. The cubic root of 3131885497 is about 1463.0818582512.

The spelling of 3131885497 in words is "three billion, one hundred thirty-one million, eight hundred eighty-five thousand, four hundred ninety-seven".