23454005 has 4 divisors (see below), whose sum is σ = 28144812. Its totient is φ = 18763200.

The previous prime is 23454001. The next prime is 23454007. The reversal of 23454005 is 50045432.

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 2869636 + 20584369 = 1694^2 + 4537^2 .

It is not a de Polignac number, because 23454005 - 2² = 23454001 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 (23454001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2345396 + ... + 2345405.

It is an arithmetic number, because the mean of its divisors is an integer number (7036203).

Almost surely, 2^23454005 is an apocalyptic number.

It is an amenable number.

23454005 is a deficient number, since it is larger than the sum of its proper divisors (4690807).

23454005 is an equidigital number, since it uses as much as digits as its factorization.

23454005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4690806.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 23454005 is about 4842.9335118294. The cubic root of 23454005 is about 286.2457217949.

Adding to 23454005 its reverse (50045432), we get a palindrome (73499437).

The spelling of 23454005 in words is "twenty-three million, four hundred fifty-four thousand, five".