23145842 has 8 divisors (see below), whose sum is σ = 35373996. Its totient is φ = 11354512.

The previous prime is 23145827. The next prime is 23145883. The reversal of 23145842 is 24854132.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 23145721 + 121 = 4811^2 + 11^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109073 + ... + 109284.

Almost surely, 2^23145842 is an apocalyptic number.

23145842 is a deficient number, since it is larger than the sum of its proper divisors (12228154).

23145842 is a wasteful number, since it uses less digits than its factorization.

23145842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218412.

The product of its digits is 7680, while the sum is 29.

The square root of 23145842 is about 4811.0125753317. The cubic root of 23145842 is about 284.9865264996.

Adding to 23145842 its reverse (24854132), we get a palindrome (47999974).

The spelling of 23145842 in words is "twenty-three million, one hundred forty-five thousand, eight hundred forty-two".