345423013 has 4 divisors (see below), whose sum is σ = 371994028. Its totient is φ = 318852000.

The previous prime is 345423011. The next prime is 345423019. The reversal of 345423013 is 310324543.

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 190495204 + 154927809 = 13802^2 + 12447^2 .

It is a cyclic number.

It is not a de Polignac number, because 345423013 - 2¹ = 345423011 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 (345423011) 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, 13285488 + ... + 13285513.

It is an arithmetic number, because the mean of its divisors is an integer number (92998507).

Almost surely, 2^345423013 is an apocalyptic number.

It is an amenable number.

345423013 is a deficient number, since it is larger than the sum of its proper divisors (26571015).

345423013 is a wasteful number, since it uses less digits than its factorization.

345423013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26571014.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 345423013 is about 18585.5592598124. The cubic root of 345423013 is about 701.6444420103.

Adding to 345423013 its reverse (310324543), we get a palindrome (655747556).

The spelling of 345423013 in words is "three hundred forty-five million, four hundred twenty-three thousand, thirteen".