125043065 has 16 divisors (see below), whose sum is σ = 178944768. Its totient is φ = 82015296.

The previous prime is 125043053. The next prime is 125043067. The reversal of 125043065 is 560340521.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125043065 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (125043067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76862 + ... + 78471.

It is an arithmetic number, because the mean of its divisors is an integer number (11184048).

Almost surely, 2^125043065 is an apocalyptic number.

It is an amenable number.

125043065 is a deficient number, since it is larger than the sum of its proper divisors (53901703).

125043065 is a wasteful number, since it uses less digits than its factorization.

125043065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155368.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 125043065 is about 11182.2656469966. The cubic root of 125043065 is about 500.0574134071.

Adding to 125043065 its reverse (560340521), we get a palindrome (685383586).

The spelling of 125043065 in words is "one hundred twenty-five million, forty-three thousand, sixty-five".