23140009 has 8 divisors (see below), whose sum is σ = 24745608. Its totient is φ = 21561600.

The previous prime is 23140003. The next prime is 23140037. The reversal of 23140009 is 90004132.

It can be written as a sum of positive squares in 4 ways, for example, as 14845609 + 8294400 = 3853^2 + 2880^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23140009 - 2⁹ = 23139497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23140003) 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 7 ways as a sum of consecutive naturals, for example, 5022 + ... + 8455.

It is an arithmetic number, because the mean of its divisors is an integer number (3093201).

Almost surely, 2^23140009 is an apocalyptic number.

It is an amenable number.

23140009 is a deficient number, since it is larger than the sum of its proper divisors (1605599).

23140009 is a wasteful number, since it uses less digits than its factorization.

23140009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13595.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 23140009 is about 4810.4063237943. The cubic root of 23140009 is about 284.9625846030.

The spelling of 23140009 in words is "twenty-three million, one hundred forty thousand, nine".