253112122 has 4 divisors (see below), whose sum is σ = 379668186. Its totient is φ = 126556060.

The previous prime is 253112107. The next prime is 253112141. The reversal of 253112122 is 221211352.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 162843121 + 90269001 = 12761^2 + 9501^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 253112122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63278029 + ... + 63278032.

Almost surely, 2^253112122 is an apocalyptic number.

253112122 is a deficient number, since it is larger than the sum of its proper divisors (126556064).

253112122 is a wasteful number, since it uses less digits than its factorization.

253112122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126556063.

The product of its digits is 240, while the sum is 19.

The square root of 253112122 is about 15909.4978550550. The cubic root of 253112122 is about 632.5637711639.

Adding to 253112122 its reverse (221211352), we get a palindrome (474323474).

The spelling of 253112122 in words is "two hundred fifty-three million, one hundred twelve thousand, one hundred twenty-two".