125512345 has 16 divisors (see below), whose sum is σ = 172706688. Its totient is φ = 85777920.

The previous prime is 125512337. The next prime is 125512367. The reversal of 125512345 is 543215521.

It is not a de Polignac number, because 125512345 - 2³ = 125512337 is a prime.

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, 4905 + ... + 16585.

It is an arithmetic number, because the mean of its divisors is an integer number (10794168).

Almost surely, 2^125512345 is an apocalyptic number.

It is an amenable number.

125512345 is a deficient number, since it is larger than the sum of its proper divisors (47194343).

125512345 is a wasteful number, since it uses less digits than its factorization.

125512345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12000.

The product of its digits is 6000, while the sum is 28.

The square root of 125512345 is about 11203.2292219699. The cubic root of 125512345 is about 500.6821954621.

Adding to 125512345 its reverse (543215521), we get a palindrome (668727866).

The spelling of 125512345 in words is "one hundred twenty-five million, five hundred twelve thousand, three hundred forty-five".