345425625173 has 4 divisors (see below), whose sum is σ = 345427565868. Its totient is φ = 345423684480.

The previous prime is 345425625169. The next prime is 345425625269. The reversal of 345425625173 is 371526524543.

It is a happy number.

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 169515005284 + 175910619889 = 411722^2 + 419417^2 .

It is a cyclic number.

It is not a de Polignac number, because 345425625173 - 2² = 345425625169 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345425625673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 672986 + ... + 1069467.

It is an arithmetic number, because the mean of its divisors is an integer number (86356891467).

Almost surely, 2^345425625173 is an apocalyptic number.

It is an amenable number.

345425625173 is a deficient number, since it is larger than the sum of its proper divisors (1940695).

345425625173 is a wasteful number, since it uses less digits than its factorization.

345425625173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1940694.

The product of its digits is 3024000, while the sum is 47.

The spelling of 345425625173 in words is "three hundred forty-five billion, four hundred twenty-five million, six hundred twenty-five thousand, one hundred seventy-three".