351441481 has 2 divisors, whose sum is σ = 351441482. Its totient is φ = 351441480.

The previous prime is 351441479. The next prime is 351441511. The reversal of 351441481 is 184144153.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 299601481 + 51840000 = 17309^2 + 7200^2 .

It is a cyclic number.

It is not a de Polignac number, because 351441481 - 2¹ = 351441479 is a prime.

It is a super-2 number, since 2×351441481² = 247022229134946722, which contains 22 as substring.

Together with 351441479, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (351441421) 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, 175720740 + 175720741.

It is an arithmetic number, because the mean of its divisors is an integer number (175720741).

Almost surely, 2^351441481 is an apocalyptic number.

351441481 is the 11857-th centered pentagonal number.

It is an amenable number.

351441481 is a deficient number, since it is larger than the sum of its proper divisors (1).

351441481 is an equidigital number, since it uses as much as digits as its factorization.

351441481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7680, while the sum is 31.

The square root of 351441481 is about 18746.7725488949. The cubic root of 351441481 is about 705.6960287299.

The spelling of 351441481 in words is "three hundred fifty-one million, four hundred forty-one thousand, four hundred eighty-one".