214130845 has 4 divisors (see below), whose sum is σ = 256957020. Its totient is φ = 171304672.

The previous prime is 214130837. The next prime is 214130869. The reversal of 214130845 is 548031412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 137288089 + 76842756 = 11717^2 + 8766^2 .

It is a cyclic number.

It is not a de Polignac number, because 214130845 - 2³ = 214130837 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21413080 + ... + 21413089.

It is an arithmetic number, because the mean of its divisors is an integer number (64239255).

Almost surely, 2^214130845 is an apocalyptic number.

It is an amenable number.

214130845 is a deficient number, since it is larger than the sum of its proper divisors (42826175).

214130845 is an equidigital number, since it uses as much as digits as its factorization.

214130845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42826174.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 214130845 is about 14633.2103449653. The cubic root of 214130845 is about 598.2642845878.

The spelling of 214130845 in words is "two hundred fourteen million, one hundred thirty thousand, eight hundred forty-five".