83474143 has 2 divisors, whose sum is σ = 83474144. Its totient is φ = 83474142.

The previous prime is 83474129. The next prime is 83474189. The reversal of 83474143 is 34147438.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 83474143 - 2¹³ = 83465951 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 83474099 and 83474108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83474243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41737071 + 41737072.

It is an arithmetic number, because the mean of its divisors is an integer number (41737072).

Almost surely, 2^83474143 is an apocalyptic number.

83474143 is a deficient number, since it is larger than the sum of its proper divisors (1).

83474143 is an equidigital number, since it uses as much as digits as its factorization.

83474143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 34.

The square root of 83474143 is about 9136.4184996091. The cubic root of 83474143 is about 437.0361110798.

The spelling of 83474143 in words is "eighty-three million, four hundred seventy-four thousand, one hundred forty-three".