34542123 has 16 divisors (see below), whose sum is σ = 57421056. Its totient is φ = 17943840.

The previous prime is 34542119. The next prime is 34542143. The reversal of 34542123 is 32124543.

It is not a de Polignac number, because 34542123 - 2² = 34542119 is a prime.

It is a super-2 number, since 2×34542123² = 2386316522694258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 34542093 and 34542102.

It is not an unprimeable number, because it can be changed into a prime (34542143) 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, 74536 + ... + 74997.

It is an arithmetic number, because the mean of its divisors is an integer number (3588816).

Almost surely, 2^34542123 is an apocalyptic number.

34542123 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

34542123 is a deficient number, since it is larger than the sum of its proper divisors (22878933).

34542123 is a wasteful number, since it uses less digits than its factorization.

34542123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149554.

The product of its digits is 2880, while the sum is 24.

The square root of 34542123 is about 5877.2547162770. The cubic root of 34542123 is about 325.6739403650.

Adding to 34542123 its reverse (32124543), we get a palindrome (66666666).

The spelling of 34542123 in words is "thirty-four million, five hundred forty-two thousand, one hundred twenty-three".