23148553 has 2 divisors, whose sum is σ = 23148554. Its totient is φ = 23148552.

The previous prime is 23148547. The next prime is 23148589. The reversal of 23148553 is 35584132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19035769 + 4112784 = 4363^2 + 2028^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23148553 is a prime.

It is not a weakly prime, because it can be changed into another prime (23148523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11574276 + 11574277.

It is an arithmetic number, because the mean of its divisors is an integer number (11574277).

Almost surely, 2^23148553 is an apocalyptic number.

It is an amenable number.

23148553 is a deficient number, since it is larger than the sum of its proper divisors (1).

23148553 is an equidigital number, since it uses as much as digits as its factorization.

23148553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14400, while the sum is 31.

The square root of 23148553 is about 4811.2943165015. The cubic root of 23148553 is about 284.9976525917.

It can be divided in two parts, 231 and 48553, that added together give a palindrome (48784).

The spelling of 23148553 in words is "twenty-three million, one hundred forty-eight thousand, five hundred fifty-three".