1223254517 has 4 divisors (see below), whose sum is σ = 1276439520. Its totient is φ = 1170069516.

The previous prime is 1223254441. The next prime is 1223254519. The reversal of 1223254517 is 7154523221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1223254517 - 2¹⁸ = 1222992373 is a prime.

It is a super-2 number, since 2×1223254517² = 2992703226721806578, 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 (1223254519) 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, 26592467 + ... + 26592512.

It is an arithmetic number, because the mean of its divisors is an integer number (319109880).

Almost surely, 2^1223254517 is an apocalyptic number.

It is an amenable number.

1223254517 is a deficient number, since it is larger than the sum of its proper divisors (53185003).

1223254517 is an equidigital number, since it uses as much as digits as its factorization.

1223254517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53185002.

The product of its digits is 16800, while the sum is 32.

The square root of 1223254517 is about 34975.0556396984. The cubic root of 1223254517 is about 1069.4790362876.

Adding to 1223254517 its reverse (7154523221), we get a palindrome (8377777738).

The spelling of 1223254517 in words is "one billion, two hundred twenty-three million, two hundred fifty-four thousand, five hundred seventeen".