351312253 has 2 divisors, whose sum is σ = 351312254. Its totient is φ = 351312252.

The previous prime is 351312217. The next prime is 351312271. The reversal of 351312253 is 352213153.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 339222724 + 12089529 = 18418^2 + 3477^2 .

It is an emirp because it is prime and its reverse (352213153) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-351312253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (351312653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175656126 + 175656127.

It is an arithmetic number, because the mean of its divisors is an integer number (175656127).

Almost surely, 2^351312253 is an apocalyptic number.

It is an amenable number.

351312253 is a deficient number, since it is larger than the sum of its proper divisors (1).

351312253 is an equidigital number, since it uses as much as digits as its factorization.

351312253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2700, while the sum is 25.

The square root of 351312253 is about 18743.3255587156. The cubic root of 351312253 is about 705.6095213297.

The spelling of 351312253 in words is "three hundred fifty-one million, three hundred twelve thousand, two hundred fifty-three".