23213741 has 2 divisors, whose sum is σ = 23213742. Its totient is φ = 23213740.

The previous prime is 23213731. The next prime is 23213759. The reversal of 23213741 is 14731232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19096900 + 4116841 = 4370^2 + 2029^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23213741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23213711) 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, 11606870 + 11606871.

It is an arithmetic number, because the mean of its divisors is an integer number (11606871).

Almost surely, 2^23213741 is an apocalyptic number.

It is an amenable number.

23213741 is a deficient number, since it is larger than the sum of its proper divisors (1).

23213741 is an equidigital number, since it uses as much as digits as its factorization.

23213741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008, while the sum is 23.

The square root of 23213741 is about 4818.0640302927. The cubic root of 23213741 is about 285.2649265305.

Adding to 23213741 its reverse (14731232), we get a palindrome (37944973).

The spelling of 23213741 in words is "twenty-three million, two hundred thirteen thousand, seven hundred forty-one".