214661651 has 2 divisors, whose sum is σ = 214661652. Its totient is φ = 214661650.

The previous prime is 214661627. The next prime is 214661659. The reversal of 214661651 is 156166412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 214661651 - 2¹⁰ = 214660627 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (214661659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107330825 + 107330826.

It is an arithmetic number, because the mean of its divisors is an integer number (107330826).

Almost surely, 2^214661651 is an apocalyptic number.

214661651 is a deficient number, since it is larger than the sum of its proper divisors (1).

214661651 is an equidigital number, since it uses as much as digits as its factorization.

214661651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 32.

The square root of 214661651 is about 14651.3361506724. The cubic root of 214661651 is about 598.7582197055.

The spelling of 214661651 in words is "two hundred fourteen million, six hundred sixty-one thousand, six hundred fifty-one".