23241509 has 2 divisors, whose sum is σ = 23241510. Its totient is φ = 23241508.

The previous prime is 23241497. The next prime is 23241527. The reversal of 23241509 is 90514232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12496225 + 10745284 = 3535^2 + 3278^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23241509 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23241529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11620754 + 11620755.

It is an arithmetic number, because the mean of its divisors is an integer number (11620755).

Almost surely, 2^23241509 is an apocalyptic number.

It is an amenable number.

23241509 is a deficient number, since it is larger than the sum of its proper divisors (1).

23241509 is an equidigital number, since it uses as much as digits as its factorization.

23241509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 23241509 is about 4820.9448244094. The cubic root of 23241509 is about 285.3786247082.

The spelling of 23241509 in words is "twenty-three million, two hundred forty-one thousand, five hundred nine".