23462561 has 4 divisors (see below), whose sum is σ = 23542932. Its totient is φ = 23382192.

The previous prime is 23462557. The next prime is 23462573. The reversal of 23462561 is 16526432.

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

It can be written as a sum of positive squares in 2 ways, for example, as 17430625 + 6031936 = 4175^2 + 2456^2 .

It is a cyclic number.

It is not a de Polignac number, because 23462561 - 2² = 23462557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23462501) 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, 39746 + ... + 40331.

It is an arithmetic number, because the mean of its divisors is an integer number (5885733).

Almost surely, 2^23462561 is an apocalyptic number.

It is an amenable number.

23462561 is a deficient number, since it is larger than the sum of its proper divisors (80371).

23462561 is an equidigital number, since it uses as much as digits as its factorization.

23462561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80370.

The product of its digits is 8640, while the sum is 29.

The square root of 23462561 is about 4843.8167801848. The cubic root of 23462561 is about 286.2805249574.

Adding to 23462561 its reverse (16526432), we get a palindrome (39988993).

The spelling of 23462561 in words is "twenty-three million, four hundred sixty-two thousand, five hundred sixty-one".