123234253 has 18 divisors (see below), whose sum is σ = 133902314. Its totient is φ = 113400672.

The previous prime is 123234227. The next prime is 123234313. The reversal of 123234253 is 352432321.

It can be written as a sum of positive squares in 3 ways, for example, as 6874884 + 116359369 = 2622^2 + 10787^2 .

It is a de Polignac number, because none of the positive numbers 2^k-123234253 is a prime.

It is a super-2 number, since 2×123234253² = 30373362224936018, 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 (123234053) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 444751 + ... + 445027.

Almost surely, 2^123234253 is an apocalyptic number.

It is an amenable number.

123234253 is a deficient number, since it is larger than the sum of its proper divisors (10668061).

123234253 is an equidigital number, since it uses as much as digits as its factorization.

123234253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381 (or 329 counting only the distinct ones).

The product of its digits is 4320, while the sum is 25.

The square root of 123234253 is about 11101.0924237212. The cubic root of 123234253 is about 497.6344971074.

Adding to 123234253 its reverse (352432321), we get a palindrome (475666574).

The spelling of 123234253 in words is "one hundred twenty-three million, two hundred thirty-four thousand, two hundred fifty-three".