125210345 has 16 divisors (see below), whose sum is σ = 162502032. Its totient is φ = 92067840.

The previous prime is 125210311. The next prime is 125210347. The reversal of 125210345 is 543012521.

It can be written as a sum of positive squares in 8 ways, for example, as 16883881 + 108326464 = 4109^2 + 10408^2 .

It is not a de Polignac number, because 125210345 - 2⁸ = 125210089 is a prime.

It is an alternating number because its digits alternate between odd and even.

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 125210345.

It is not an unprimeable number, because it can be changed into a prime (125210347) 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 in 15 ways as a sum of consecutive naturals, for example, 11669 + ... + 19661.

It is an arithmetic number, because the mean of its divisors is an integer number (10156377).

Almost surely, 2^125210345 is an apocalyptic number.

It is an amenable number.

125210345 is a deficient number, since it is larger than the sum of its proper divisors (37291687).

125210345 is a wasteful number, since it uses less digits than its factorization.

125210345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8252.

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

The square root of 125210345 is about 11189.7428478049. The cubic root of 125210345 is about 500.2803028313.

Adding to 125210345 its reverse (543012521), we get a palindrome (668222866).

The spelling of 125210345 in words is "one hundred twenty-five million, two hundred ten thousand, three hundred forty-five".