23541661 has 8 divisors (see below), whose sum is σ = 27657504. Its totient is φ = 19755120.

The previous prime is 23541647. The next prime is 23541677. The reversal of 23541661 is 16614532.

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

It is a de Polignac number, because none of the positive numbers 2^k-23541661 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 (23541611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82171 + ... + 82456.

It is an arithmetic number, because the mean of its divisors is an integer number (3457188).

Almost surely, 2^23541661 is an apocalyptic number.

It is an amenable number.

23541661 is a deficient number, since it is larger than the sum of its proper divisors (4115843).

23541661 is a wasteful number, since it uses less digits than its factorization.

23541661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164651.

The product of its digits is 4320, while the sum is 28.

The square root of 23541661 is about 4851.9749587153. The cubic root of 23541661 is about 286.6018793257.

The spelling of 23541661 in words is "twenty-three million, five hundred forty-one thousand, six hundred sixty-one".