214661611 has 2 divisors, whose sum is σ = 214661612. Its totient is φ = 214661610.

The previous prime is 214661597. The next prime is 214661617. The reversal of 214661611 is 116166412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 214661611 - 2¹¹ = 214659563 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 214661611.

It is not a weakly prime, because it can be changed into another prime (214661617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107330805 + 107330806.

It is an arithmetic number, because the mean of its divisors is an integer number (107330806).

Almost surely, 2^214661611 is an apocalyptic number.

214661611 is a deficient number, since it is larger than the sum of its proper divisors (1).

214661611 is an equidigital number, since it uses as much as digits as its factorization.

214661611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 28.

The square root of 214661611 is about 14651.3347856091. The cubic root of 214661611 is about 598.7581825146.

It can be divided in two parts, 214 and 661611, that added together give a triangular number (661825 = T₁₁₅₀).

The spelling of 214661611 in words is "two hundred fourteen million, six hundred sixty-one thousand, six hundred eleven".