125510443 has 2 divisors, whose sum is σ = 125510444. Its totient is φ = 125510442.

The previous prime is 125510419. The next prime is 125510449. The reversal of 125510443 is 344015521.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125510443 is a prime.

It is not a weakly prime, because it can be changed into another prime (125510449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62755221 + 62755222.

It is an arithmetic number, because the mean of its divisors is an integer number (62755222).

Almost surely, 2^125510443 is an apocalyptic number.

125510443 is a deficient number, since it is larger than the sum of its proper divisors (1).

125510443 is an equidigital number, since it uses as much as digits as its factorization.

125510443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 125510443 is about 11203.1443354087. The cubic root of 125510443 is about 500.6796663553.

Adding to 125510443 its reverse (344015521), we get a palindrome (469525964).

The spelling of 125510443 in words is "one hundred twenty-five million, five hundred ten thousand, four hundred forty-three".