43125361 has 2 divisors, whose sum is σ = 43125362. Its totient is φ = 43125360.

The previous prime is 43125359. The next prime is 43125377. The reversal of 43125361 is 16352134.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41525136 + 1600225 = 6444^2 + 1265^2 .

It is a cyclic number.

It is not a de Polignac number, because 43125361 - 2¹ = 43125359 is a prime.

It is a super-2 number, since 2×43125361² = 3719593522760642, which contains 22 as substring.

Together with 43125359, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (43125661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21562680 + 21562681.

It is an arithmetic number, because the mean of its divisors is an integer number (21562681).

Almost surely, 2^43125361 is an apocalyptic number.

It is an amenable number.

43125361 is a deficient number, since it is larger than the sum of its proper divisors (1).

43125361 is an equidigital number, since it uses as much as digits as its factorization.

43125361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 25.

The square root of 43125361 is about 6566.9902542946. The cubic root of 43125361 is about 350.6799326851.

Adding to 43125361 its reverse (16352134), we get a palindrome (59477495).

The spelling of 43125361 in words is "forty-three million, one hundred twenty-five thousand, three hundred sixty-one".