4135123873 has 4 divisors (see below), whose sum is σ = 4223105280. Its totient is φ = 4047142468.

The previous prime is 4135123859. The next prime is 4135123897. The reversal of 4135123873 is 3783215314.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4135123873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4135123823) 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, 43990633 + ... + 43990726.

It is an arithmetic number, because the mean of its divisors is an integer number (1055776320).

Almost surely, 2^4135123873 is an apocalyptic number.

It is an amenable number.

4135123873 is a deficient number, since it is larger than the sum of its proper divisors (87981407).

4135123873 is an equidigital number, since it uses as much as digits as its factorization.

4135123873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87981406.

The product of its digits is 60480, while the sum is 37.

The square root of 4135123873 is about 64304.9288390867. The cubic root of 4135123873 is about 1605.0781201806.

The spelling of 4135123873 in words is "four billion, one hundred thirty-five million, one hundred twenty-three thousand, eight hundred seventy-three".