23453147 has 2 divisors, whose sum is σ = 23453148. Its totient is φ = 23453146.

The previous prime is 23453137. The next prime is 23453159. The reversal of 23453147 is 74135432.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23453147 - 2²⁴ = 6675931 is a prime.

It is not a weakly prime, because it can be changed into another prime (23453137) 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 as a sum of consecutive naturals, namely, 11726573 + 11726574.

It is an arithmetic number, because the mean of its divisors is an integer number (11726574).

Almost surely, 2^23453147 is an apocalyptic number.

23453147 is a deficient number, since it is larger than the sum of its proper divisors (1).

23453147 is an equidigital number, since it uses as much as digits as its factorization.

23453147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 29.

The square root of 23453147 is about 4842.8449283453. The cubic root of 23453147 is about 286.2422312493.

Adding to 23453147 its reverse (74135432), we get a palindrome (97588579).

The spelling of 23453147 in words is "twenty-three million, four hundred fifty-three thousand, one hundred forty-seven".