125731115 has 8 divisors (see below), whose sum is σ = 150978048. Its totient is φ = 100517760.

The previous prime is 125731079. The next prime is 125731121. The reversal of 125731115 is 511137521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 125731115 - 2¹⁴ = 125714731 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 755 + ... + 15875.

It is an arithmetic number, because the mean of its divisors is an integer number (18872256).

Almost surely, 2^125731115 is an apocalyptic number.

125731115 is a deficient number, since it is larger than the sum of its proper divisors (25246933).

125731115 is a wasteful number, since it uses less digits than its factorization.

125731115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16789.

The product of its digits is 1050, while the sum is 26.

The square root of 125731115 is about 11212.9886738550. The cubic root of 125731115 is about 500.9729256036.

Adding to 125731115 its reverse (511137521), we get a palindrome (636868636).

The spelling of 125731115 in words is "one hundred twenty-five million, seven hundred thirty-one thousand, one hundred fifteen".