67242123 has 64 divisors (see below), whose sum is σ = 116121600. Its totient is φ = 38085120.

The previous prime is 67242079. The next prime is 67242127. The reversal of 67242123 is 32124276.

It is not a de Polignac number, because 67242123 - 2⁶ = 67242059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (67242127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 351958 + ... + 352148.

It is an arithmetic number, because the mean of its divisors is an integer number (1814400).

Almost surely, 2^67242123 is an apocalyptic number.

67242123 is a deficient number, since it is larger than the sum of its proper divisors (48879477).

67242123 is a wasteful number, since it uses less digits than its factorization.

67242123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289 (or 283 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 67242123 is about 8200.1294501977. The cubic root of 67242123 is about 406.6434727284.

Adding to 67242123 its reverse (32124276), we get a palindrome (99366399).

The spelling of 67242123 in words is "sixty-seven million, two hundred forty-two thousand, one hundred twenty-three".