23481547 has 2 divisors, whose sum is σ = 23481548. Its totient is φ = 23481546.

The previous prime is 23481527. The next prime is 23481553. The reversal of 23481547 is 74518432.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23481547 is a prime.

It is equal to p_1476655 and since 23481547 and 1476655 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (23481527) 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 as a sum of consecutive naturals, namely, 11740773 + 11740774.

It is an arithmetic number, because the mean of its divisors is an integer number (11740774).

Almost surely, 2^23481547 is an apocalyptic number.

23481547 is a deficient number, since it is larger than the sum of its proper divisors (1).

23481547 is an equidigital number, since it uses as much as digits as its factorization.

23481547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26880, while the sum is 34.

The square root of 23481547 is about 4845.7762020135. The cubic root of 23481547 is about 286.3577239272.

Adding to 23481547 its reverse (74518432), we get a palindrome (97999979).

The spelling of 23481547 in words is "twenty-three million, four hundred eighty-one thousand, five hundred forty-seven".