122511253 has 4 divisors (see below), whose sum is σ = 122558508. Its totient is φ = 122464000.

The previous prime is 122511251. The next prime is 122511269. The reversal of 122511253 is 352115221.

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

It can be written as a sum of positive squares in 2 ways, for example, as 97180164 + 25331089 = 9858^2 + 5033^2 .

It is a cyclic number.

It is not a de Polignac number, because 122511253 - 2¹ = 122511251 is a prime.

It is a super-2 number, since 2×122511253² = 30018014223260018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122511251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19498 + ... + 25003.

It is an arithmetic number, because the mean of its divisors is an integer number (30639627).

Almost surely, 2^122511253 is an apocalyptic number.

It is an amenable number.

122511253 is a deficient number, since it is larger than the sum of its proper divisors (47255).

122511253 is an equidigital number, since it uses as much as digits as its factorization.

122511253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47254.

The product of its digits is 600, while the sum is 22.

The square root of 122511253 is about 11068.4801576368. The cubic root of 122511253 is about 496.6594011719.

Adding to 122511253 its reverse (352115221), we get a palindrome (474626474).

The spelling of 122511253 in words is "one hundred twenty-two million, five hundred eleven thousand, two hundred fifty-three".