23142085 has 4 divisors (see below), whose sum is σ = 27770508. Its totient is φ = 18513664.

The previous prime is 23142017. The next prime is 23142107. The reversal of 23142085 is 58024132.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14130081 + 9012004 = 3759^2 + 3002^2 .

It is a cyclic number.

It is not a de Polignac number, because 23142085 - 2¹¹ = 23140037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2314204 + ... + 2314213.

It is an arithmetic number, because the mean of its divisors is an integer number (6942627).

Almost surely, 2^23142085 is an apocalyptic number.

It is an amenable number.

23142085 is a deficient number, since it is larger than the sum of its proper divisors (4628423).

23142085 is an equidigital number, since it uses as much as digits as its factorization.

23142085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4628422.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 23142085 is about 4810.6221011424. The cubic root of 23142085 is about 284.9711061300.

The spelling of 23142085 in words is "twenty-three million, one hundred forty-two thousand, eighty-five".