23197541 has 4 divisors (see below), whose sum is σ = 23218272. Its totient is φ = 23176812.

The previous prime is 23197519. The next prime is 23197543. The reversal of 23197541 is 14579132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23197541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23197498 and 23197507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23197543) 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, 8585 + ... + 10958.

It is an arithmetic number, because the mean of its divisors is an integer number (5804568).

Almost surely, 2^23197541 is an apocalyptic number.

It is an amenable number.

23197541 is a deficient number, since it is larger than the sum of its proper divisors (20731).

23197541 is a wasteful number, since it uses less digits than its factorization.

23197541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20730.

The product of its digits is 7560, while the sum is 32.

The square root of 23197541 is about 4816.3825637090. The cubic root of 23197541 is about 285.1985525204.

The spelling of 23197541 in words is "twenty-three million, one hundred ninety-seven thousand, five hundred forty-one".