23443151 has 4 divisors (see below), whose sum is σ = 23465400. Its totient is φ = 23420904.

The previous prime is 23443139. The next prime is 23443157. The reversal of 23443151 is 15134432.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23443151 - 2²² = 19248847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23443157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9461 + ... + 11678.

It is an arithmetic number, because the mean of its divisors is an integer number (5866350).

Almost surely, 2^23443151 is an apocalyptic number.

23443151 is a deficient number, since it is larger than the sum of its proper divisors (22249).

23443151 is a wasteful number, since it uses less digits than its factorization.

23443151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22248.

The product of its digits is 1440, while the sum is 23.

The square root of 23443151 is about 4841.8127803541. The cubic root of 23443151 is about 286.2015588974.

Adding to 23443151 its reverse (15134432), we get a palindrome (38577583).

The spelling of 23443151 in words is "twenty-three million, four hundred forty-three thousand, one hundred fifty-one".