43045481 has 2 divisors, whose sum is σ = 43045482. Its totient is φ = 43045480.

The previous prime is 43045459. The next prime is 43045511. The reversal of 43045481 is 18454034.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43033600 + 11881 = 6560^2 + 109^2 .

It is a cyclic number.

It is not a de Polignac number, because 43045481 - 2⁶ = 43045417 is a prime.

It is a super-2 number, since 2×43045481² = 3705826869042722, which contains 22 as substring.

It is equal to p_2607095 and since 43045481 and 2607095 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (43045781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21522740 + 21522741.

It is an arithmetic number, because the mean of its divisors is an integer number (21522741).

Almost surely, 2^43045481 is an apocalyptic number.

It is an amenable number.

43045481 is a deficient number, since it is larger than the sum of its proper divisors (1).

43045481 is an equidigital number, since it uses as much as digits as its factorization.

43045481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 43045481 is about 6560.9055015295. The cubic root of 43045481 is about 350.4632803821.

The spelling of 43045481 in words is "forty-three million, forty-five thousand, four hundred eighty-one".