351885161 has 2 divisors, whose sum is σ = 351885162. Its totient is φ = 351885160.

The previous prime is 351885151. The next prime is 351885241. The reversal of 351885161 is 161588153.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 290497936 + 61387225 = 17044^2 + 7835^2 .

It is an emirp because it is prime and its reverse (161588153) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 351885161 - 2¹⁸ = 351623017 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (351885151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175942580 + 175942581.

It is an arithmetic number, because the mean of its divisors is an integer number (175942581).

Almost surely, 2^351885161 is an apocalyptic number.

It is an amenable number.

351885161 is a deficient number, since it is larger than the sum of its proper divisors (1).

351885161 is an equidigital number, since it uses as much as digits as its factorization.

351885161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28800, while the sum is 38.

The square root of 351885161 is about 18758.6023200024. The cubic root of 351885161 is about 705.9928743058.

The spelling of 351885161 in words is "three hundred fifty-one million, eight hundred eighty-five thousand, one hundred sixty-one".