125806547 has 2 divisors, whose sum is σ = 125806548. Its totient is φ = 125806546.

The previous prime is 125806529. The next prime is 125806561. The reversal of 125806547 is 745608521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125806547 - 2¹² = 125802451 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125806547.

It is not a weakly prime, because it can be changed into another prime (125806517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62903273 + 62903274.

It is an arithmetic number, because the mean of its divisors is an integer number (62903274).

Almost surely, 2^125806547 is an apocalyptic number.

125806547 is a deficient number, since it is larger than the sum of its proper divisors (1).

125806547 is an equidigital number, since it uses as much as digits as its factorization.

125806547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 125806547 is about 11216.3517687348. The cubic root of 125806547 is about 501.0730913025.

The spelling of 125806547 in words is "one hundred twenty-five million, eight hundred six thousand, five hundred forty-seven".