214000261 has 4 divisors (see below), whose sum is σ = 217508524. Its totient is φ = 210492000.

The previous prime is 214000243. The next prime is 214000289. The reversal of 214000261 is 162000412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 58997761 + 155002500 = 7681^2 + 12450^2 .

It is a cyclic number.

It is not a de Polignac number, because 214000261 - 2¹⁹ = 213475973 is a prime.

It is a super-2 number, since 2×214000261² = 91592223416136242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214000201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1754040 + ... + 1754161.

It is an arithmetic number, because the mean of its divisors is an integer number (54377131).

Almost surely, 2^214000261 is an apocalyptic number.

It is an amenable number.

214000261 is a deficient number, since it is larger than the sum of its proper divisors (3508263).

214000261 is an equidigital number, since it uses as much as digits as its factorization.

214000261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3508262.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 214000261 is about 14628.7477591214. The cubic root of 214000261 is about 598.1426461420.

Adding to 214000261 its reverse (162000412), we get a palindrome (376000673).

The spelling of 214000261 in words is "two hundred fourteen million, two hundred sixty-one", and thus it is an aban number.