351389 has 4 divisors (see below), whose sum is σ = 360924. Its totient is φ = 341856.

The previous prime is 351383. The next prime is 351391. The reversal of 351389 is 983153.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 156025 + 195364 = 395^2 + 442^2 .

It is a cyclic number.

It is not a de Polignac number, because 351389 - 2⁸ = 351133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (351383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4712 + ... + 4785.

It is an arithmetic number, because the mean of its divisors is an integer number (90231).

2³⁵¹³⁸⁹ is an apocalyptic number.

It is an amenable number.

351389 is a deficient number, since it is larger than the sum of its proper divisors (9535).

351389 is an equidigital number, since it uses as much as digits as its factorization.

351389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9534.

The product of its digits is 3240, while the sum is 29.

The square root of 351389 is about 592.7807351795. The cubic root of 351389 is about 70.5660899622.

The spelling of 351389 in words is "three hundred fifty-one thousand, three hundred eighty-nine".