125312115 has 16 divisors (see below), whose sum is σ = 200844288. Its totient is φ = 66718176.

The previous prime is 125312101. The next prime is 125312123. The reversal of 125312115 is 511213521.

It is not a de Polignac number, because 125312115 - 2¹¹ = 125310067 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125312091 and 125312100.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2224 + ... + 15986.

It is an arithmetic number, because the mean of its divisors is an integer number (12552768).

Almost surely, 2^125312115 is an apocalyptic number.

125312115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

125312115 is a deficient number, since it is larger than the sum of its proper divisors (75532173).

125312115 is a wasteful number, since it uses less digits than its factorization.

125312115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14378.

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

The square root of 125312115 is about 11194.2893923643. The cubic root of 125312115 is about 500.4158074458.

Adding to 125312115 its reverse (511213521), we get a palindrome (636525636).

The spelling of 125312115 in words is "one hundred twenty-five million, three hundred twelve thousand, one hundred fifteen".