23400145 has 8 divisors (see below), whose sum is σ = 28112256. Its totient is φ = 18698736.

The previous prime is 23400103. The next prime is 23400161. The reversal of 23400145 is 54100432.

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 23400145 - 2¹⁹ = 22875857 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3394 + ... + 7636.

It is an arithmetic number, because the mean of its divisors is an integer number (3514032).

Almost surely, 2^23400145 is an apocalyptic number.

It is an amenable number.

23400145 is a deficient number, since it is larger than the sum of its proper divisors (4712111).

23400145 is a wasteful number, since it uses less digits than its factorization.

23400145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5351.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 23400145 is about 4837.3696364863. The cubic root of 23400145 is about 286.0264413912.

Adding to 23400145 its reverse (54100432), we get a palindrome (77500577).

The spelling of 23400145 in words is "twenty-three million, four hundred thousand, one hundred forty-five".