43370113 has 4 divisors (see below), whose sum is σ = 43384068. Its totient is φ = 43356160.

The previous prime is 43370099. The next prime is 43370123. The reversal of 43370113 is 31107334.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 31107334 = 2 ⋅15553667.

It can be written as a sum of positive squares in 2 ways, for example, as 40297104 + 3073009 = 6348^2 + 1753^2 .

It is a cyclic number.

It is not a de Polignac number, because 43370113 - 2¹³ = 43361921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43370123) 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 in 3 ways as a sum of consecutive naturals, for example, 33 + ... + 9313.

It is an arithmetic number, because the mean of its divisors is an integer number (10846017).

Almost surely, 2^43370113 is an apocalyptic number.

It is an amenable number.

43370113 is a deficient number, since it is larger than the sum of its proper divisors (13955).

43370113 is an equidigital number, since it uses as much as digits as its factorization.

43370113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13954.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 43370113 is about 6585.5989097424. The cubic root of 43370113 is about 351.3420933532.

Adding to 43370113 its reverse (31107334), we get a palindrome (74477447).

The spelling of 43370113 in words is "forty-three million, three hundred seventy thousand, one hundred thirteen".