253306117 has 2 divisors, whose sum is σ = 253306118. Its totient is φ = 253306116.

The previous prime is 253306087. The next prime is 253306121. The reversal of 253306117 is 711603352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 218625796 + 34680321 = 14786^2 + 5889^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253306117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253306147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126653058 + 126653059.

It is an arithmetic number, because the mean of its divisors is an integer number (126653059).

Almost surely, 2^253306117 is an apocalyptic number.

It is an amenable number.

253306117 is a deficient number, since it is larger than the sum of its proper divisors (1).

253306117 is an equidigital number, since it uses as much as digits as its factorization.

253306117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 253306117 is about 15915.5935170511. The cubic root of 253306117 is about 632.7253370741.

Adding to 253306117 its reverse (711603352), we get a palindrome (964909469).

The spelling of 253306117 in words is "two hundred fifty-three million, three hundred six thousand, one hundred seventeen".