1245210125 has 64 divisors (see below), whose sum is σ = 1705017600. Its totient is φ = 904780800.

The previous prime is 1245210121. The next prime is 1245210181. The reversal of 1245210125 is 5210125421.

It is not a de Polignac number, because 1245210125 - 2² = 1245210121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1245210125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245210121) 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 63 ways as a sum of consecutive naturals, for example, 9089057 + ... + 9089193.

It is an arithmetic number, because the mean of its divisors is an integer number (26640900).

Almost surely, 2^1245210125 is an apocalyptic number.

It is an amenable number.

1245210125 is a deficient number, since it is larger than the sum of its proper divisors (459807475).

1245210125 is a wasteful number, since it uses less digits than its factorization.

1245210125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303 (or 293 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 1245210125 is about 35287.5349804998. The cubic root of 1245210125 is about 1075.8396540752.

Adding to 1245210125 its reverse (5210125421), we get a palindrome (6455335546).

The spelling of 1245210125 in words is "one billion, two hundred forty-five million, two hundred ten thousand, one hundred twenty-five".