23613261 has 8 divisors (see below), whose sum is σ = 35982144. Its totient is φ = 13493280.

The previous prime is 23613259. The next prime is 23613269. The reversal of 23613261 is 16231632.

It is a happy number.

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

It is not a de Polignac number, because 23613261 - 2¹ = 23613259 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 (23613269) 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, 562200 + ... + 562241.

It is an arithmetic number, because the mean of its divisors is an integer number (4497768).

Almost surely, 2^23613261 is an apocalyptic number.

23613261 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23613261 is a deficient number, since it is larger than the sum of its proper divisors (12368883).

23613261 is a wasteful number, since it uses less digits than its factorization.

23613261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1124451.

The product of its digits is 1296, while the sum is 24.

The square root of 23613261 is about 4859.3477957438. The cubic root of 23613261 is about 286.8921438295.

Adding to 23613261 its reverse (16231632), we get a palindrome (39844893).

The spelling of 23613261 in words is "twenty-three million, six hundred thirteen thousand, two hundred sixty-one".