214231951409 has 6 divisors (see below), whose sum is σ = 249208596594. Its totient is φ = 183627386880.

The previous prime is 214231951403. The next prime is 214231951421. The reversal of 214231951409 is 904159132412.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 141148235809 + 73083715600 = 375697^2 + 270340^2 .

It is not a de Polignac number, because 214231951409 - 2²⁰ = 214230902833 is a prime.

It is a super-3 number, since 3×214231951409³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214231951403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2186040272 + ... + 2186040369.

It is an arithmetic number, because the mean of its divisors is an integer number (41534766099).

Almost surely, 2^214231951409 is an apocalyptic number.

It is an amenable number.

214231951409 is a deficient number, since it is larger than the sum of its proper divisors (34976645185).

214231951409 is an equidigital number, since it uses as much as digits as its factorization.

214231951409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4372080655 (or 4372080648 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 41.

The spelling of 214231951409 in words is "two hundred fourteen billion, two hundred thirty-one million, nine hundred fifty-one thousand, four hundred nine".