23146009 has 4 divisors (see below), whose sum is σ = 24364240. Its totient is φ = 21927780.

The previous prime is 23146007. The next prime is 23146049. The reversal of 23146009 is 90064132.

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 not a de Polignac number, because 23146009 - 2¹ = 23146007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23146007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 609087 + ... + 609124.

It is an arithmetic number, because the mean of its divisors is an integer number (6091060).

Almost surely, 2^23146009 is an apocalyptic number.

It is an amenable number.

23146009 is a deficient number, since it is larger than the sum of its proper divisors (1218231).

23146009 is a wasteful number, since it uses less digits than its factorization.

23146009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1218230.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 23146009 is about 4811.0299313141. The cubic root of 23146009 is about 284.9872119018.

The spelling of 23146009 in words is "twenty-three million, one hundred forty-six thousand, nine".