125460109 has 2 divisors, whose sum is σ = 125460110. Its totient is φ = 125460108.

The previous prime is 125460047. The next prime is 125460133. The reversal of 125460109 is 901064521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91202500 + 34257609 = 9550^2 + 5853^2 .

It is a cyclic number.

It is not a de Polignac number, because 125460109 - 2¹¹ = 125458061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125460509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62730054 + 62730055.

It is an arithmetic number, because the mean of its divisors is an integer number (62730055).

Almost surely, 2^125460109 is an apocalyptic number.

It is an amenable number.

125460109 is a deficient number, since it is larger than the sum of its proper divisors (1).

125460109 is an equidigital number, since it uses as much as digits as its factorization.

125460109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 125460109 is about 11200.8976872392. The cubic root of 125460109 is about 500.6127274900.

The spelling of 125460109 in words is "one hundred twenty-five million, four hundred sixty thousand, one hundred nine".