4142623 has 4 divisors (see below), whose sum is σ = 4276288. Its totient is φ = 4008960.

The previous prime is 4142609. The next prime is 4142629. The reversal of 4142623 is 3262414.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 4142623 - 2⁵ = 4142591 is a prime.

It is a super-2 number, since 2×4142623² = 34322650640258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4142594 and 4142603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4142629) 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, 66786 + ... + 66847.

It is an arithmetic number, because the mean of its divisors is an integer number (1069072).

Almost surely, 2^4142623 is an apocalyptic number.

4142623 is a deficient number, since it is larger than the sum of its proper divisors (133665).

4142623 is a wasteful number, since it uses less digits than its factorization.

4142623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133664.

The product of its digits is 1152, while the sum is 22.

The square root of 4142623 is about 2035.3434599595. The cubic root of 4142623 is about 160.6047814286.

The spelling of 4142623 in words is "four million, one hundred forty-two thousand, six hundred twenty-three".