214149717 has 24 divisors (see below), whose sum is σ = 328610880. Its totient is φ = 137828880.

The previous prime is 214149709. The next prime is 214149721. The reversal of 214149717 is 717941412.

214149717 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 214149717 - 2³ = 214149709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214149707) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17992 + ... + 27422.

It is an arithmetic number, because the mean of its divisors is an integer number (13692120).

Almost surely, 2^214149717 is an apocalyptic number.

214149717 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

214149717 is a deficient number, since it is larger than the sum of its proper divisors (114461163).

214149717 is an equidigital number, since it uses as much as digits as its factorization.

214149717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9498 (or 9463 counting only the distinct ones).

The product of its digits is 14112, while the sum is 36.

The square root of 214149717 is about 14633.8551653349. The cubic root of 214149717 is about 598.2818596860.

The spelling of 214149717 in words is "two hundred fourteen million, one hundred forty-nine thousand, seven hundred seventeen".