814438143 has 6 divisors (see below), whose sum is σ = 1176410664. Its totient is φ = 542958756.

The previous prime is 814438133. The next prime is 814438153. The reversal of 814438143 is 341834418.

814438143 is a `hidden beast` number, since 81 + 4 + 438 + 143 = 666.

It is an interprime number because it is at equal distance from previous prime (814438133) and next prime (814438153).

It is not a de Polignac number, because 814438143 - 2¹⁰ = 814437119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 814438098 and 814438107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (814438123) 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, 45246555 + ... + 45246572.

It is an arithmetic number, because the mean of its divisors is an integer number (196068444).

Almost surely, 2^814438143 is an apocalyptic number.

814438143 is a deficient number, since it is larger than the sum of its proper divisors (361972521).

814438143 is a wasteful number, since it uses less digits than its factorization.

814438143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90493133 (or 90493130 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 814438143 is about 28538.3626545042. The cubic root of 814438143 is about 933.8691631386.

The spelling of 814438143 in words is "eight hundred fourteen million, four hundred thirty-eight thousand, one hundred forty-three".