43053613 has 2 divisors, whose sum is σ = 43053614. Its totient is φ = 43053612.

The previous prime is 43053611. The next prime is 43053629. The reversal of 43053613 is 31635034.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38900169 + 4153444 = 6237^2 + 2038^2 .

It is a cyclic number.

It is not a de Polignac number, because 43053613 - 2¹ = 43053611 is a prime.

It is a super-2 number, since 2×43053613² = 3707227184707538, which contains 22 as substring.

Together with 43053611, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43053611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21526806 + 21526807.

It is an arithmetic number, because the mean of its divisors is an integer number (21526807).

Almost surely, 2^43053613 is an apocalyptic number.

It is an amenable number.

43053613 is a deficient number, since it is larger than the sum of its proper divisors (1).

43053613 is an equidigital number, since it uses as much as digits as its factorization.

43053613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 43053613 is about 6561.5252037922. The cubic root of 43053613 is about 350.4853484202.

Adding to 43053613 its reverse (31635034), we get a palindrome (74688647).

The spelling of 43053613 in words is "forty-three million, fifty-three thousand, six hundred thirteen".