351333397 has 2 divisors, whose sum is σ = 351333398. Its totient is φ = 351333396.

The previous prime is 351333391. The next prime is 351333401. The reversal of 351333397 is 793333153.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 297252081 + 54081316 = 17241^2 + 7354^2 .

It is an emirp because it is prime and its reverse (793333153) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 351333397 - 2²⁷ = 217115669 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (351333391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175666698 + 175666699.

It is an arithmetic number, because the mean of its divisors is an integer number (175666699).

Almost surely, 2^351333397 is an apocalyptic number.

It is an amenable number.

351333397 is a deficient number, since it is larger than the sum of its proper divisors (1).

351333397 is an equidigital number, since it uses as much as digits as its factorization.

351333397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 76545, while the sum is 37.

The square root of 351333397 is about 18743.8895910107. The cubic root of 351333397 is about 705.6236769309.

The spelling of 351333397 in words is "three hundred fifty-one million, three hundred thirty-three thousand, three hundred ninety-seven".