219137141 has 4 divisors (see below), whose sum is σ = 219168672. Its totient is φ = 219105612.

The previous prime is 219137129. The next prime is 219137143. The reversal of 219137141 is 141731912.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 219137141 - 2²⁶ = 152028277 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (219137143) 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, 251 + ... + 20936.

It is an arithmetic number, because the mean of its divisors is an integer number (54792168).

Almost surely, 2^219137141 is an apocalyptic number.

It is an amenable number.

219137141 is a deficient number, since it is larger than the sum of its proper divisors (31531).

219137141 is a wasteful number, since it uses less digits than its factorization.

219137141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31530.

The product of its digits is 1512, while the sum is 29.

The square root of 219137141 is about 14803.2814267648. The cubic root of 219137141 is about 602.8908098475.

The spelling of 219137141 in words is "two hundred nineteen million, one hundred thirty-seven thousand, one hundred forty-one".