216413741 has 2 divisors, whose sum is σ = 216413742. Its totient is φ = 216413740.

The previous prime is 216413719. The next prime is 216413749. The reversal of 216413741 is 147314612.

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., 135233641 + 81180100 = 11629^2 + 9010^2 .

It is a cyclic number.

It is not a de Polignac number, because 216413741 - 2⁶ = 216413677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216413749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108206870 + 108206871.

It is an arithmetic number, because the mean of its divisors is an integer number (108206871).

Almost surely, 2^216413741 is an apocalyptic number.

It is an amenable number.

216413741 is a deficient number, since it is larger than the sum of its proper divisors (1).

216413741 is an equidigital number, since it uses as much as digits as its factorization.

216413741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 29.

The square root of 216413741 is about 14711.0074773960. The cubic root of 216413741 is about 600.3828491774.

The spelling of 216413741 in words is "two hundred sixteen million, four hundred thirteen thousand, seven hundred forty-one".