214520261 has 4 divisors (see below), whose sum is σ = 214579872. Its totient is φ = 214460652.

The previous prime is 214520239. The next prime is 214520269. The reversal of 214520261 is 162025412.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 214520261 - 2¹⁰ = 214519237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214520269) 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 3 ways as a sum of consecutive naturals, for example, 24035 + ... + 31728.

It is an arithmetic number, because the mean of its divisors is an integer number (53644968).

Almost surely, 2^214520261 is an apocalyptic number.

It is an amenable number.

214520261 is a deficient number, since it is larger than the sum of its proper divisors (59611).

214520261 is an equidigital number, since it uses as much as digits as its factorization.

214520261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59610.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 214520261 is about 14646.5101986787. The cubic root of 214520261 is about 598.6267305794.

Adding to 214520261 its reverse (162025412), we get a palindrome (376545673).

The spelling of 214520261 in words is "two hundred fourteen million, five hundred twenty thousand, two hundred sixty-one".