214227557 has 4 divisors (see below), whose sum is σ = 226829196. Its totient is φ = 201625920.

The previous prime is 214227511. The next prime is 214227593. The reversal of 214227557 is 755722412.

214227557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 195832036 + 18395521 = 13994^2 + 4289^2 .

It is a cyclic number.

It is not a de Polignac number, because 214227557 - 2⁶ = 214227493 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 (214227157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6300794 + ... + 6300827.

It is an arithmetic number, because the mean of its divisors is an integer number (56707299).

Almost surely, 2^214227557 is an apocalyptic number.

It is an amenable number.

214227557 is a deficient number, since it is larger than the sum of its proper divisors (12601639).

214227557 is a wasteful number, since it uses less digits than its factorization.

214227557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12601638.

The product of its digits is 39200, while the sum is 35.

The square root of 214227557 is about 14636.5145099508. The cubic root of 214227557 is about 598.3543395368.

Adding to 214227557 its reverse (755722412), we get a palindrome (969949969).

The spelling of 214227557 in words is "two hundred fourteen million, two hundred twenty-seven thousand, five hundred fifty-seven".