613122253 has 2 divisors, whose sum is σ = 613122254. Its totient is φ = 613122252.

The previous prime is 613122203. The next prime is 613122271. The reversal of 613122253 is 352221316.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 606981769 + 6140484 = 24637^2 + 2478^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-613122253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (613122203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306561126 + 306561127.

It is an arithmetic number, because the mean of its divisors is an integer number (306561127).

Almost surely, 2^613122253 is an apocalyptic number.

It is an amenable number.

613122253 is a deficient number, since it is larger than the sum of its proper divisors (1).

613122253 is an equidigital number, since it uses as much as digits as its factorization.

613122253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 25.

The square root of 613122253 is about 24761.3055592794. The cubic root of 613122253 is about 849.5371196035.

Adding to 613122253 its reverse (352221316), we get a palindrome (965343569).

The spelling of 613122253 in words is "six hundred thirteen million, one hundred twenty-two thousand, two hundred fifty-three".