23161245 has 8 divisors (see below), whose sum is σ = 37058016. Its totient is φ = 12352656.

The previous prime is 23161241. The next prime is 23161249. The reversal of 23161245 is 54216132.

It is an interprime number because it is at equal distance from previous prime (23161241) and next prime (23161249).

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

It is not a de Polignac number, because 23161245 - 2² = 23161241 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23161241) 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, 772027 + ... + 772056.

It is an arithmetic number, because the mean of its divisors is an integer number (4632252).

Almost surely, 2^23161245 is an apocalyptic number.

It is an amenable number.

23161245 is a deficient number, since it is larger than the sum of its proper divisors (13896771).

23161245 is a wasteful number, since it uses less digits than its factorization.

23161245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1544091.

The product of its digits is 1440, while the sum is 24.

The square root of 23161245 is about 4812.6131155538. The cubic root of 23161245 is about 285.0497297032.

Adding to 23161245 its reverse (54216132), we get a palindrome (77377377).

The spelling of 23161245 in words is "twenty-three million, one hundred sixty-one thousand, two hundred forty-five".