345146123 has 16 divisors (see below), whose sum is σ = 407586816. Its totient is φ = 286147680.

The previous prime is 345146071. The next prime is 345146141. The reversal of 345146123 is 321641543.

It is a de Polignac number, because none of the positive numbers 2^k-345146123 is a prime.

It is a super-2 number, since 2×345146123² = 238251692443862258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (345146623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19790 + ... + 32892.

It is an arithmetic number, because the mean of its divisors is an integer number (25474176).

Almost surely, 2^345146123 is an apocalyptic number.

345146123 is a deficient number, since it is larger than the sum of its proper divisors (62440693).

345146123 is a wasteful number, since it uses less digits than its factorization.

345146123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13234.

The product of its digits is 8640, while the sum is 29.

The square root of 345146123 is about 18578.1087035252. The cubic root of 345146123 is about 701.4569132351.

Adding to 345146123 its reverse (321641543), we get a palindrome (666787666).

The spelling of 345146123 in words is "three hundred forty-five million, one hundred forty-six thousand, one hundred twenty-three".