34240123 has 4 divisors (see below), whose sum is σ = 35728848. Its totient is φ = 32751400.

The previous prime is 34240117. The next prime is 34240181. The reversal of 34240123 is 32104243.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34240123 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 34240123.

It is not an unprimeable number, because it can be changed into a prime (34240103) 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, 744328 + ... + 744373.

It is an arithmetic number, because the mean of its divisors is an integer number (8932212).

Almost surely, 2^34240123 is an apocalyptic number.

34240123 is a deficient number, since it is larger than the sum of its proper divisors (1488725).

34240123 is a wasteful number, since it uses less digits than its factorization.

34240123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1488724.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 34240123 is about 5851.5060454553. The cubic root of 34240123 is about 324.7220440029.

Adding to 34240123 its reverse (32104243), we get a palindrome (66344366).

The spelling of 34240123 in words is "thirty-four million, two hundred forty thousand, one hundred twenty-three".