618253 has 2 divisors, whose sum is σ = 618254. Its totient is φ = 618252.

The previous prime is 618229. The next prime is 618257. The reversal of 618253 is 352816.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 426409 + 191844 = 653^2 + 438^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-618253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (618257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 309126 + 309127.

It is an arithmetic number, because the mean of its divisors is an integer number (309127).

2⁶¹⁸²⁵³ is an apocalyptic number.

It is an amenable number.

618253 is a deficient number, since it is larger than the sum of its proper divisors (1).

618253 is an equidigital number, since it uses as much as digits as its factorization.

618253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 25.

The square root of 618253 is about 786.2906587261. The cubic root of 618253 is about 85.1900246941.

The spelling of 618253 in words is "six hundred eighteen thousand, two hundred fifty-three".