214561983 has 4 divisors (see below), whose sum is σ = 286082648. Its totient is φ = 143041320.

The previous prime is 214561969. The next prime is 214561987. The reversal of 214561983 is 389165412.

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

It is not a de Polignac number, because 214561983 - 2¹⁰ = 214560959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214561987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35760328 + ... + 35760333.

It is an arithmetic number, because the mean of its divisors is an integer number (71520662).

Almost surely, 2^214561983 is an apocalyptic number.

214561983 is a deficient number, since it is larger than the sum of its proper divisors (71520665).

214561983 is an equidigital number, since it uses as much as digits as its factorization.

214561983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71520664.

The product of its digits is 51840, while the sum is 39.

The square root of 214561983 is about 14647.9344277615. The cubic root of 214561983 is about 598.6655369923.

The spelling of 214561983 in words is "two hundred fourteen million, five hundred sixty-one thousand, nine hundred eighty-three".