125216144 has 20 divisors (see below), whose sum is σ = 242783196. Its totient is φ = 62562432.

The previous prime is 125216123. The next prime is 125216149. The reversal of 125216144 is 441612521.

It can be written as a sum of positive squares in 2 ways, for example, as 82810000 + 42406144 = 9100^2 + 6512^2 .

It is not an unprimeable number, because it can be changed into a prime (125216149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34982 + ... + 38394.

Almost surely, 2^125216144 is an apocalyptic number.

It is an amenable number.

125216144 is a deficient number, since it is larger than the sum of its proper divisors (117567052).

125216144 is a wasteful number, since it uses less digits than its factorization.

125216144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5714 (or 5708 counting only the distinct ones).

The product of its digits is 1920, while the sum is 26.

The square root of 125216144 is about 11190.0019660409. The cubic root of 125216144 is about 500.2880260501.

Adding to 125216144 its reverse (441612521), we get a palindrome (566828665).

The spelling of 125216144 in words is "one hundred twenty-five million, two hundred sixteen thousand, one hundred forty-four".