43143473 has 2 divisors, whose sum is σ = 43143474. Its totient is φ = 43143472.

The previous prime is 43143461. The next prime is 43143479. The reversal of 43143473 is 37434134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38850289 + 4293184 = 6233^2 + 2072^2 .

It is a cyclic number.

It is not a de Polignac number, because 43143473 - 2¹² = 43139377 is a prime.

It is a super-2 number, since 2×43143473² = 3722718525003458, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (43143479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21571736 + 21571737.

It is an arithmetic number, because the mean of its divisors is an integer number (21571737).

Almost surely, 2^43143473 is an apocalyptic number.

It is an amenable number.

43143473 is a deficient number, since it is larger than the sum of its proper divisors (1).

43143473 is an equidigital number, since it uses as much as digits as its factorization.

43143473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 29.

The square root of 43143473 is about 6568.3691278734. The cubic root of 43143473 is about 350.7290192382.

The spelling of 43143473 in words is "forty-three million, one hundred forty-three thousand, four hundred seventy-three".