125172522115 has 8 divisors (see below), whose sum is σ = 151665347808. Its totient is φ = 99165803520.

The previous prime is 125172522113. The next prime is 125172522121. The reversal of 125172522115 is 511225271521.

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

It is not a de Polignac number, because 125172522115 - 2¹ = 125172522113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125172522113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121526206 + ... + 121527235.

It is an arithmetic number, because the mean of its divisors is an integer number (18958168476).

Almost surely, 2^125172522115 is an apocalyptic number.

125172522115 is a deficient number, since it is larger than the sum of its proper divisors (26492825693).

125172522115 is a wasteful number, since it uses less digits than its factorization.

125172522115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243053549.

The product of its digits is 14000, while the sum is 34.

Adding to 125172522115 its reverse (511225271521), we get a palindrome (636397793636).

The spelling of 125172522115 in words is "one hundred twenty-five billion, one hundred seventy-two million, five hundred twenty-two thousand, one hundred fifteen".