23241157 has 2 divisors, whose sum is σ = 23241158. Its totient is φ = 23241156.

The previous prime is 23241133. The next prime is 23241173. The reversal of 23241157 is 75114232.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22268961 + 972196 = 4719^2 + 986^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23241157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23241107) 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, 11620578 + 11620579.

It is an arithmetic number, because the mean of its divisors is an integer number (11620579).

Almost surely, 2^23241157 is an apocalyptic number.

It is an amenable number.

23241157 is a deficient number, since it is larger than the sum of its proper divisors (1).

23241157 is an equidigital number, since it uses as much as digits as its factorization.

23241157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1680, while the sum is 25.

The square root of 23241157 is about 4820.9083169046. The cubic root of 23241157 is about 285.3771839844.

Adding to 23241157 its reverse (75114232), we get a palindrome (98355389).

It can be divided in two parts, 2324 and 1157, that added together give a square (3481 = 59²).

The spelling of 23241157 in words is "twenty-three million, two hundred forty-one thousand, one hundred fifty-seven".