43145101 has 2 divisors, whose sum is σ = 43145102. Its totient is φ = 43145100.

The previous prime is 43145093. The next prime is 43145131. The reversal of 43145101 is 10154134.

43145101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31069476 + 12075625 = 5574^2 + 3475^2 .

It is a cyclic number.

It is not a de Polignac number, because 43145101 - 2³ = 43145093 is a prime.

It is a super-2 number, since 2×43145101² = 3722999480600402, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43145131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21572550 + 21572551.

It is an arithmetic number, because the mean of its divisors is an integer number (21572551).

Almost surely, 2^43145101 is an apocalyptic number.

It is an amenable number.

43145101 is a deficient number, since it is larger than the sum of its proper divisors (1).

43145101 is an equidigital number, since it uses as much as digits as its factorization.

43145101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 43145101 is about 6568.4930539660. The cubic root of 43145101 is about 350.7334307179.

Adding to 43145101 its reverse (10154134), we get a palindrome (53299235).

The spelling of 43145101 in words is "forty-three million, one hundred forty-five thousand, one hundred one".