345422251 has 4 divisors (see below), whose sum is σ = 345474904. Its totient is φ = 345369600.

The previous prime is 345422237. The next prime is 345422309. The reversal of 345422251 is 152224543.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345422251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345422351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14805 + ... + 30166.

It is an arithmetic number, because the mean of its divisors is an integer number (86368726).

Almost surely, 2^345422251 is an apocalyptic number.

345422251 is a deficient number, since it is larger than the sum of its proper divisors (52653).

345422251 is an equidigital number, since it uses as much as digits as its factorization.

345422251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52652.

The product of its digits is 9600, while the sum is 28.

The square root of 345422251 is about 18585.5387600145. The cubic root of 345422251 is about 701.6439260695.

Adding to 345422251 its reverse (152224543), we get a palindrome (497646794).

The spelling of 345422251 in words is "three hundred forty-five million, four hundred twenty-two thousand, two hundred fifty-one".