214331035681 has 9 divisors (see below), whose sum is σ = 249327627699. Its totient is φ = 183709538544.

The previous prime is 214331035657. The next prime is 214331035691. The reversal of 214331035681 is 186530133412.

The square root of 214331035681 is 462959.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 175607093025 + 38723942656 = 419055^2 + 196784^2 .

It is not a de Polignac number, because 214331035681 - 2⁵ = 214331035649 is a prime.

It is a super-2 number, since 2×214331035681² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 214331035681.

It is not an unprimeable number, because it can be changed into a prime (214331035621) 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 in 8 ways as a sum of consecutive naturals, for example, 3207645 + ... + 3273781.

Almost surely, 2^214331035681 is an apocalyptic number.

214331035681 is the 462959-th square number.

214331035681 is the 231480-th centered octagonal number.

It is an amenable number.

214331035681 is a deficient number, since it is larger than the sum of its proper divisors (34996592018).

214331035681 is an frugal number, since it uses more digits than its factorization.

214331035681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132288 (or 66144 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 214331035681 in words is "two hundred fourteen billion, three hundred thirty-one million, thirty-five thousand, six hundred eighty-one".