214021005 has 32 divisors (see below), whose sum is σ = 374226048. Its totient is φ = 103584000.

The previous prime is 214020991. The next prime is 214021009. The reversal of 214021005 is 500120412.

214021005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 214021005 - 2⁸ = 214020749 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214021009) 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, 163855 + ... + 165155.

It is an arithmetic number, because the mean of its divisors is an integer number (11694564).

Almost surely, 2^214021005 is an apocalyptic number.

It is an amenable number.

214021005 is a deficient number, since it is larger than the sum of its proper divisors (160205043).

214021005 is a wasteful number, since it uses less digits than its factorization.

214021005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2317.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 214021005 is about 14629.4567568314. The cubic root of 214021005 is about 598.1619723960.

Adding to 214021005 its reverse (500120412), we get a palindrome (714141417).

The spelling of 214021005 in words is "two hundred fourteen million, twenty-one thousand, five".