43354249 has 2 divisors, whose sum is σ = 43354250. Its totient is φ = 43354248.

The previous prime is 43354243. The next prime is 43354253. The reversal of 43354249 is 94245334.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42994249 + 360000 = 6557^2 + 600^2 .

It is a cyclic number.

It is not a de Polignac number, because 43354249 - 2¹⁹ = 42829961 is a prime.

It is equal to p_2624686 and since 43354249 and 2624686 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 (43354243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21677124 + 21677125.

It is an arithmetic number, because the mean of its divisors is an integer number (21677125).

Almost surely, 2^43354249 is an apocalyptic number.

It is an amenable number.

43354249 is a deficient number, since it is larger than the sum of its proper divisors (1).

43354249 is an equidigital number, since it uses as much as digits as its factorization.

43354249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 34.

The square root of 43354249 is about 6584.3943533175. The cubic root of 43354249 is about 351.2992499425.

It can be divided in two parts, 4335 and 4249, that multiplied together give a triangular number (18419415 = T₆₀₆₉).

The spelling of 43354249 in words is "forty-three million, three hundred fifty-four thousand, two hundred forty-nine".