23145452 has 24 divisors (see below), whose sum is σ = 46109952. Its totient is φ = 10062800.

The previous prime is 23145433. The next prime is 23145457. The reversal of 23145452 is 25454132.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (23145457) 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 7 ways as a sum of consecutive naturals, for example, 10424 + ... + 12447.

It is an arithmetic number, because the mean of its divisors is an integer number (1921248).

Almost surely, 2^23145452 is an apocalyptic number.

23145452 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

23145452 is a deficient number, since it is larger than the sum of its proper divisors (22964500).

23145452 is a wasteful number, since it uses less digits than its factorization.

23145452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22909 (or 22907 counting only the distinct ones).

The product of its digits is 4800, while the sum is 26.

The square root of 23145452 is about 4810.9720431530. The cubic root of 23145452 is about 284.9849258468.

Adding to 23145452 its reverse (25454132), we get a palindrome (48599584).

The spelling of 23145452 in words is "twenty-three million, one hundred forty-five thousand, four hundred fifty-two".