23454145 has 16 divisors (see below), whose sum is σ = 33066432. Its totient is φ = 15744960.

The previous prime is 23454139. The next prime is 23454149. The reversal of 23454145 is 54145432.

It is not a de Polignac number, because 23454145 - 2¹³ = 23445953 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23454149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15687 + ... + 17116.

It is an arithmetic number, because the mean of its divisors is an integer number (2066652).

Almost surely, 2^23454145 is an apocalyptic number.

It is an amenable number.

23454145 is a deficient number, since it is larger than the sum of its proper divisors (9612287).

23454145 is a wasteful number, since it uses less digits than its factorization.

23454145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32832.

The product of its digits is 9600, while the sum is 28.

The square root of 23454145 is about 4842.9479658572. The cubic root of 23454145 is about 286.2462913397.

Adding to 23454145 its reverse (54145432), we get a palindrome (77599577).

The spelling of 23454145 in words is "twenty-three million, four hundred fifty-four thousand, one hundred forty-five".