214741661 has 2 divisors, whose sum is σ = 214741662. Its totient is φ = 214741660.

The previous prime is 214741601. The next prime is 214741693. The reversal of 214741661 is 166147412.

It is an a-pointer prime, because the next prime (214741693) can be obtained adding 214741661 to its sum of digits (32).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 159239161 + 55502500 = 12619^2 + 7450^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214741661 is a prime.

It is a super-2 number, since 2×214741661² = 92227961938077842, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214741601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107370830 + 107370831.

It is an arithmetic number, because the mean of its divisors is an integer number (107370831).

Almost surely, 2^214741661 is an apocalyptic number.

It is an amenable number.

214741661 is a deficient number, since it is larger than the sum of its proper divisors (1).

214741661 is an equidigital number, since it uses as much as digits as its factorization.

214741661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 32.

The square root of 214741661 is about 14654.0663639824. The cubic root of 214741661 is about 598.8326014036.

The spelling of 214741661 in words is "two hundred fourteen million, seven hundred forty-one thousand, six hundred sixty-one".