125315211 has 16 divisors (see below), whose sum is σ = 202189824. Its totient is φ = 67396224.

The previous prime is 125315159. The next prime is 125315219. The reversal of 125315211 is 112513521.

It is not a de Polignac number, because 125315211 - 2⁹ = 125314699 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (125315219) 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, 175155 + ... + 175868.

It is an arithmetic number, because the mean of its divisors is an integer number (12636864).

Almost surely, 2^125315211 is an apocalyptic number.

125315211 is a deficient number, since it is larger than the sum of its proper divisors (76874613).

125315211 is a wasteful number, since it uses less digits than its factorization.

125315211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351050.

The product of its digits is 300, while the sum is 21.

The square root of 125315211 is about 11194.4276763040. The cubic root of 125315211 is about 500.4199285546.

Adding to 125315211 its reverse (112513521), we get a palindrome (237828732).

The spelling of 125315211 in words is "one hundred twenty-five million, three hundred fifteen thousand, two hundred eleven".