23540005 has 8 divisors (see below), whose sum is σ = 29159424. Its totient is φ = 18224400.

The previous prime is 23539991. The next prime is 23540009. The reversal of 23540005 is 50004532.

It is a happy number.

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

It is not a de Polignac number, because 23540005 - 2⁵ = 23539973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23540009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75781 + ... + 76090.

It is an arithmetic number, because the mean of its divisors is an integer number (3644928).

Almost surely, 2^23540005 is an apocalyptic number.

It is an amenable number.

23540005 is a deficient number, since it is larger than the sum of its proper divisors (5619419).

23540005 is a wasteful number, since it uses less digits than its factorization.

23540005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151907.

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 23540005 is about 4851.8043035555. The cubic root of 23540005 is about 286.5951589865.

Adding to 23540005 its reverse (50004532), we get a palindrome (73544537).

The spelling of 23540005 in words is "twenty-three million, five hundred forty thousand, five".