351121369 has 2 divisors, whose sum is σ = 351121370. Its totient is φ = 351121368.

The previous prime is 351121301. The next prime is 351121399. The reversal of 351121369 is 963121153.

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., 197683600 + 153437769 = 14060^2 + 12387^2 .

It is a cyclic number.

It is not a de Polignac number, because 351121369 - 2⁹ = 351120857 is a prime.

It is a super-2 number, since 2×351121369² = 246572431536868322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 351121369.

It is not a weakly prime, because it can be changed into another prime (351121399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175560684 + 175560685.

It is an arithmetic number, because the mean of its divisors is an integer number (175560685).

Almost surely, 2^351121369 is an apocalyptic number.

It is an amenable number.

351121369 is a deficient number, since it is larger than the sum of its proper divisors (1).

351121369 is an equidigital number, since it uses as much as digits as its factorization.

351121369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4860, while the sum is 31.

The square root of 351121369 is about 18738.2328142224. The cubic root of 351121369 is about 705.4817015451.

It can be divided in two parts, 35112 and 1369, that added together give a square (36481 = 191²).

The spelling of 351121369 in words is "three hundred fifty-one million, one hundred twenty-one thousand, three hundred sixty-nine".