214121445 has 32 divisors (see below), whose sum is σ = 350853120. Its totient is φ = 111478080.

The previous prime is 214121437. The next prime is 214121449. The reversal of 214121445 is 544121412.

It is not a de Polignac number, because 214121445 - 2³ = 214121437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214121449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 113016 + ... + 114894.

It is an arithmetic number, because the mean of its divisors is an integer number (10964160).

Almost surely, 2^214121445 is an apocalyptic number.

It is an amenable number.

214121445 is a deficient number, since it is larger than the sum of its proper divisors (136731675).

214121445 is a wasteful number, since it uses less digits than its factorization.

214121445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2065.

The product of its digits is 1280, while the sum is 24.

The square root of 214121445 is about 14632.8891542306. The cubic root of 214121445 is about 598.2555301795.

Adding to 214121445 its reverse (544121412), we get a palindrome (758242857).

The spelling of 214121445 in words is "two hundred fourteen million, one hundred twenty-one thousand, four hundred forty-five".