3131051225 has 12 divisors (see below), whose sum is σ = 3883826940. Its totient is φ = 2503987200.

The previous prime is 3131051221. The next prime is 3131051233. The reversal of 3131051225 is 5221501313.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 318658201 + 2812393024 = 17851^2 + 53032^2 .

It is not a de Polignac number, because 3131051225 - 2² = 3131051221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3131051225.

It is not an unprimeable number, because it can be changed into a prime (3131051221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59465 + ... + 98985.

It is an arithmetic number, because the mean of its divisors is an integer number (323652245).

Almost surely, 2^3131051225 is an apocalyptic number.

It is an amenable number.

3131051225 is a deficient number, since it is larger than the sum of its proper divisors (752775715).

3131051225 is a wasteful number, since it uses less digits than its factorization.

3131051225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42700 (or 42695 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 3131051225 is about 55955.7970633964. The cubic root of 3131051225 is about 1462.9519347459.

Adding to 3131051225 its reverse (5221501313), we get a palindrome (8352552538).

The spelling of 3131051225 in words is "three billion, one hundred thirty-one million, fifty-one thousand, two hundred twenty-five".