43551103 has 2 divisors, whose sum is σ = 43551104. Its totient is φ = 43551102.

The previous prime is 43551089. The next prime is 43551113. The reversal of 43551103 is 30115534.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43551103 - 2¹³ = 43542911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43551113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21775551 + 21775552.

It is an arithmetic number, because the mean of its divisors is an integer number (21775552).

Almost surely, 2^43551103 is an apocalyptic number.

43551103 is a deficient number, since it is larger than the sum of its proper divisors (1).

43551103 is an equidigital number, since it uses as much as digits as its factorization.

43551103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 43551103 is about 6599.3259504286. The cubic root of 43551103 is about 351.8301495248.

Adding to 43551103 its reverse (30115534), we get a palindrome (73666637).

The spelling of 43551103 in words is "forty-three million, five hundred fifty-one thousand, one hundred three".