125512145 has 16 divisors (see below), whose sum is σ = 169974720. Its totient is φ = 88132800.

The previous prime is 125512091. The next prime is 125512147. The reversal of 125512145 is 541215521.

It is not a de Polignac number, because 125512145 - 2¹⁰ = 125511121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125512147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37751 + ... + 40940.

It is an arithmetic number, because the mean of its divisors is an integer number (10623420).

Almost surely, 2^125512145 is an apocalyptic number.

It is an amenable number.

125512145 is a deficient number, since it is larger than the sum of its proper divisors (44462575).

125512145 is a wasteful number, since it uses less digits than its factorization.

125512145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78736.

The product of its digits is 2000, while the sum is 26.

The square root of 125512145 is about 11203.2202959685. The cubic root of 125512145 is about 500.6819295214.

Adding to 125512145 its reverse (541215521), we get a palindrome (666727666).

The spelling of 125512145 in words is "one hundred twenty-five million, five hundred twelve thousand, one hundred forty-five".