125400065 has 24 divisors (see below), whose sum is σ = 175574592. Its totient is φ = 85730400.

The previous prime is 125400047. The next prime is 125400151. The reversal of 125400065 is 560004521.

It is not a de Polignac number, because 125400065 - 2¹⁰ = 125399041 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125400065.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 118790 + ... + 119840.

It is an arithmetic number, because the mean of its divisors is an integer number (7315608).

Almost surely, 2^125400065 is an apocalyptic number.

It is an amenable number.

125400065 is a deficient number, since it is larger than the sum of its proper divisors (50174527).

125400065 is a wasteful number, since it uses less digits than its factorization.

125400065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1557 (or 1550 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 125400065 is about 11198.2170455836. The cubic root of 125400065 is about 500.5328519359.

Adding to 125400065 its reverse (560004521), we get a palindrome (685404586).

The spelling of 125400065 in words is "one hundred twenty-five million, four hundred thousand, sixty-five".