214454621 has 16 divisors (see below), whose sum is σ = 225093120. Its totient is φ = 204085440.

The previous prime is 214454593. The next prime is 214454629. The reversal of 214454621 is 126454412.

It is a cyclic number.

It is not a de Polignac number, because 214454621 - 2¹⁸ = 214192477 is a prime.

It is a super-3 number, since 3×214454621³ (a number of 26 digits) contains 333 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 (214454629) 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 15 ways as a sum of consecutive naturals, for example, 676355 + ... + 676671.

It is an arithmetic number, because the mean of its divisors is an integer number (14068320).

Almost surely, 2^214454621 is an apocalyptic number.

It is an amenable number.

214454621 is a deficient number, since it is larger than the sum of its proper divisors (10638499).

214454621 is a wasteful number, since it uses less digits than its factorization.

214454621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644.

The product of its digits is 7680, while the sum is 29.

The square root of 214454621 is about 14644.2692204152. The cubic root of 214454621 is about 598.5656674008.

It can be divided in two parts, 2144 and 54621, that added together give a palindrome (56765).

The spelling of 214454621 in words is "two hundred fourteen million, four hundred fifty-four thousand, six hundred twenty-one".