276424143 has 16 divisors (see below), whose sum is σ = 397854720. Its totient is φ = 170190944.

The previous prime is 276424133. The next prime is 276424171. The reversal of 276424143 is 341424672.

It is a cyclic number.

It is not a de Polignac number, because 276424143 - 2⁶ = 276424079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276424133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67071 + ... + 71072.

It is an arithmetic number, because the mean of its divisors is an integer number (24865920).

Almost surely, 2^276424143 is an apocalyptic number.

276424143 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

276424143 is a deficient number, since it is larger than the sum of its proper divisors (121430577).

276424143 is a wasteful number, since it uses less digits than its factorization.

276424143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138198.

The product of its digits is 32256, while the sum is 33.

The square root of 276424143 is about 16626.0080295903. The cubic root of 276424143 is about 651.4163537245.

The spelling of 276424143 in words is "two hundred seventy-six million, four hundred twenty-four thousand, one hundred forty-three".