214102661 has 2 divisors, whose sum is σ = 214102662. Its totient is φ = 214102660.

The previous prime is 214102657. The next prime is 214102723. The reversal of 214102661 is 166201412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 209236225 + 4866436 = 14465^2 + 2206^2 .

It is a cyclic number.

It is not a de Polignac number, because 214102661 - 2² = 214102657 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214102261) 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, 107051330 + 107051331.

It is an arithmetic number, because the mean of its divisors is an integer number (107051331).

Almost surely, 2^214102661 is an apocalyptic number.

It is an amenable number.

214102661 is a deficient number, since it is larger than the sum of its proper divisors (1).

214102661 is an equidigital number, since it uses as much as digits as its factorization.

214102661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 214102661 is about 14632.2472983476. The cubic root of 214102661 is about 598.2380354963.

The spelling of 214102661 in words is "two hundred fourteen million, one hundred two thousand, six hundred sixty-one".