345451 has 2 divisors, whose sum is σ = 345452. Its totient is φ = 345450.

The previous prime is 345431. The next prime is 345461. The reversal of 345451 is 154543.

It is a strong prime.

It is an emirp because it is prime and its reverse (154543) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345451 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (345431) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172725 + 172726.

It is an arithmetic number, because the mean of its divisors is an integer number (172726).

2³⁴⁵⁴⁵¹ is an apocalyptic number.

345451 is a deficient number, since it is larger than the sum of its proper divisors (1).

345451 is an equidigital number, since it uses as much as digits as its factorization.

345451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1200, while the sum is 22.

The square root of 345451 is about 587.7507975324. The cubic root of 345451 is about 70.1663391136.

Adding to 345451 its reverse (154543), we get a palindrome (499994).

It can be divided in two parts, 3 and 45451, that added together give a palindrome (45454).

The spelling of 345451 in words is "three hundred forty-five thousand, four hundred fifty-one".