345426245 has 4 divisors (see below), whose sum is σ = 414511500. Its totient is φ = 276340992.

The previous prime is 345426229. The next prime is 345426287. The reversal of 345426245 is 542624543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 542624543 = 2269 ⋅239147.

It can be written as a sum of positive squares in 2 ways, for example, as 224580196 + 120846049 = 14986^2 + 10993^2 .

It is a cyclic number.

It is not a de Polignac number, because 345426245 - 2⁴ = 345426229 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 34542620 + ... + 34542629.

It is an arithmetic number, because the mean of its divisors is an integer number (103627875).

Almost surely, 2^345426245 is an apocalyptic number.

It is an amenable number.

345426245 is a deficient number, since it is larger than the sum of its proper divisors (69085255).

345426245 is an equidigital number, since it uses as much as digits as its factorization.

345426245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69085254.

The product of its digits is 115200, while the sum is 35.

The square root of 345426245 is about 18585.6462088355. The cubic root of 345426245 is about 701.6466303491.

The spelling of 345426245 in words is "three hundred forty-five million, four hundred twenty-six thousand, two hundred forty-five".