214413021 has 16 divisors (see below), whose sum is σ = 323035200. Its totient is φ = 140518224.

The previous prime is 214412999. The next prime is 214413029. The reversal of 214413021 is 120314412.

It is not a de Polignac number, because 214413021 - 2⁷ = 214412893 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 214412985 and 214413003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214413029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65706 + ... + 68891.

It is an arithmetic number, because the mean of its divisors is an integer number (20189700).

Almost surely, 2^214413021 is an apocalyptic number.

It is an amenable number.

214413021 is a deficient number, since it is larger than the sum of its proper divisors (108622179).

214413021 is a wasteful number, since it uses less digits than its factorization.

214413021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134665 (or 134659 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 214413021 is about 14642.8488006945. The cubic root of 214413021 is about 598.5269615557.

Adding to 214413021 its reverse (120314412), we get a palindrome (334727433).

The spelling of 214413021 in words is "two hundred fourteen million, four hundred thirteen thousand, twenty-one".