351551 has 2 divisors, whose sum is σ = 351552. Its totient is φ = 351550.

The previous prime is 351529. The next prime is 351563. The reversal of 351551 is 155153.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (155153) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-351551 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 (351151) 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, 175775 + 175776.

It is an arithmetic number, because the mean of its divisors is an integer number (175776).

2³⁵¹⁵⁵¹ is an apocalyptic number.

351551 is a deficient number, since it is larger than the sum of its proper divisors (1).

351551 is an equidigital number, since it uses as much as digits as its factorization.

351551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 375, while the sum is 20.

The square root of 351551 is about 592.9173635508. The cubic root of 351551 is about 70.5769325993.

It can be divided in two parts, 35 and 1551, that multiplied together give a triangular number (54285 = T₃₂₉).

The spelling of 351551 in words is "three hundred fifty-one thousand, five hundred fifty-one".