23205073 has 4 divisors (see below), whose sum is σ = 23223348. Its totient is φ = 23186800.

The previous prime is 23205067. The next prime is 23205107. The reversal of 23205073 is 37050232.

It is a happy number.

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 23116864 + 88209 = 4808^2 + 297^2 .

It is a cyclic number.

It is not a de Polignac number, because 23205073 - 2²¹ = 21107921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23205373) 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, 7078 + ... + 9823.

It is an arithmetic number, because the mean of its divisors is an integer number (5805837).

Almost surely, 2^23205073 is an apocalyptic number.

It is an amenable number.

23205073 is a deficient number, since it is larger than the sum of its proper divisors (18275).

23205073 is a wasteful number, since it uses less digits than its factorization.

23205073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18274.

The product of its (nonzero) digits is 1260, while the sum is 22.

The square root of 23205073 is about 4817.1644148814. The cubic root of 23205073 is about 285.2294161804.

It can be divided in two parts, 2 and 3205073, that multiplied together give a palindrome (6410146).

The spelling of 23205073 in words is "twenty-three million, two hundred five thousand, seventy-three".