23170541 has 4 divisors (see below), whose sum is σ = 24533532. Its totient is φ = 21807552.

The previous prime is 23170523. The next prime is 23170559. The reversal of 23170541 is 14507132.

23170541 is nontrivially palindromic in base 13.

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

It is an interprime number because it is at equal distance from previous prime (23170523) and next prime (23170559).

It can be written as a sum of positive squares in 2 ways, for example, as 20702500 + 2468041 = 4550^2 + 1571^2 .

It is a cyclic number.

It is not a de Polignac number, because 23170541 - 2¹⁸ = 22908397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23170501) 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, 681470 + ... + 681503.

It is an arithmetic number, because the mean of its divisors is an integer number (6133383).

Almost surely, 2^23170541 is an apocalyptic number.

It is an amenable number.

23170541 is a deficient number, since it is larger than the sum of its proper divisors (1362991).

23170541 is a wasteful number, since it uses less digits than its factorization.

23170541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362990.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 23170541 is about 4813.5788141465. The cubic root of 23170541 is about 285.0878604665.

Adding to 23170541 its reverse (14507132), we get a palindrome (37677673).

The spelling of 23170541 in words is "twenty-three million, one hundred seventy thousand, five hundred forty-one".