253131322 has 8 divisors (see below), whose sum is σ = 379773972. Its totient is φ = 126540000.

The previous prime is 253131317. The next prime is 253131323. The reversal of 253131322 is 223131352.

It can be written as a sum of positive squares in 2 ways, for example, as 251571321 + 1560001 = 15861^2 + 1249^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 253131293 and 253131302.

It is not an unprimeable number, because it can be changed into a prime (253131323) 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, 3822 + ... + 22822.

Almost surely, 2^253131322 is an apocalyptic number.

253131322 is a deficient number, since it is larger than the sum of its proper divisors (126642650).

253131322 is a wasteful number, since it uses less digits than its factorization.

253131322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25664.

The product of its digits is 1080, while the sum is 22.

The square root of 253131322 is about 15910.1012567488. The cubic root of 253131322 is about 632.5797652844.

Adding to 253131322 its reverse (223131352), we get a palindrome (476262674).

The spelling of 253131322 in words is "two hundred fifty-three million, one hundred thirty-one thousand, three hundred twenty-two".