23451641 has 4 divisors (see below), whose sum is σ = 23997072. Its totient is φ = 22906212.

The previous prime is 23451613. The next prime is 23451647. The reversal of 23451641 is 14615432.

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 not a de Polignac number, because 23451641 - 2¹⁴ = 23435257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23451641.

It is not an unprimeable number, because it can be changed into a prime (23451647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 272651 + ... + 272736.

It is an arithmetic number, because the mean of its divisors is an integer number (5999268).

Almost surely, 2^23451641 is an apocalyptic number.

It is an amenable number.

23451641 is a deficient number, since it is larger than the sum of its proper divisors (545431).

23451641 is an equidigital number, since it uses as much as digits as its factorization.

23451641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545430.

The product of its digits is 2880, while the sum is 26.

The square root of 23451641 is about 4842.6894387313. The cubic root of 23451641 is about 286.2361042815.

The spelling of 23451641 in words is "twenty-three million, four hundred fifty-one thousand, six hundred forty-one".