351342749 has 2 divisors, whose sum is σ = 351342750. Its totient is φ = 351342748.

The previous prime is 351342727. The next prime is 351342763. The reversal of 351342749 is 947243153.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 349017124 + 2325625 = 18682^2 + 1525^2 .

It is a cyclic number.

It is not a de Polignac number, because 351342749 - 2²⁰ = 350294173 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 (351342709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175671374 + 175671375.

It is an arithmetic number, because the mean of its divisors is an integer number (175671375).

Almost surely, 2^351342749 is an apocalyptic number.

It is an amenable number.

351342749 is a deficient number, since it is larger than the sum of its proper divisors (1).

351342749 is an equidigital number, since it uses as much as digits as its factorization.

351342749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 38.

The square root of 351342749 is about 18744.1390573160. The cubic root of 351342749 is about 705.6299377780.

The spelling of 351342749 in words is "three hundred fifty-one million, three hundred forty-two thousand, seven hundred forty-nine".