23340145 has 8 divisors (see below), whose sum is σ = 28048104. Its totient is φ = 18645504.

The previous prime is 23340143. The next prime is 23340169. The reversal of 23340145 is 54104332.

It can be written as a sum of positive squares in 4 ways, for example, as 7203856 + 16136289 = 2684^2 + 4017^2 .

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 23340145 - 2¹ = 23340143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23340143) 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, 1057 + ... + 6913.

It is an arithmetic number, because the mean of its divisors is an integer number (3506013).

Almost surely, 2^23340145 is an apocalyptic number.

It is an amenable number.

23340145 is a deficient number, since it is larger than the sum of its proper divisors (4707959).

23340145 is an equidigital number, since it uses as much as digits as its factorization.

23340145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6659.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 23340145 is about 4831.1639384314. The cubic root of 23340145 is about 285.7817666204.

Adding to 23340145 its reverse (54104332), we get a palindrome (77444477).

The spelling of 23340145 in words is "twenty-three million, three hundred forty thousand, one hundred forty-five".