125020543 has 2 divisors, whose sum is σ = 125020544. Its totient is φ = 125020542.

The previous prime is 125020541. The next prime is 125020547. The reversal of 125020543 is 345020521.

It is a weak prime.

It is an emirp because it is prime and its reverse (345020521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125020543 - 2¹ = 125020541 is a prime.

Together with 125020541, it forms a pair of twin primes.

It is equal to p_7111237 and since 125020543 and 7111237 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125020541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62510271 + 62510272.

It is an arithmetic number, because the mean of its divisors is an integer number (62510272).

Almost surely, 2^125020543 is an apocalyptic number.

125020543 is a deficient number, since it is larger than the sum of its proper divisors (1).

125020543 is an equidigital number, since it uses as much as digits as its factorization.

125020543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 125020543 is about 11181.2585606451. The cubic root of 125020543 is about 500.0273891663.

Subtracting from 125020543 its sum of digits (22), we obtain a palindrome (125020521).

The spelling of 125020543 in words is "one hundred twenty-five million, twenty thousand, five hundred forty-three".