126144025 has 24 divisors (see below), whose sum is σ = 179720640. Its totient is φ = 86036160.

The previous prime is 126144019. The next prime is 126144037. The reversal of 126144025 is 520441621.

It is a happy number.

It is not a de Polignac number, because 126144025 - 2³ = 126144017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32646 + ... + 36304.

It is an arithmetic number, because the mean of its divisors is an integer number (7488360).

Almost surely, 2^126144025 is an apocalyptic number.

It is an amenable number.

126144025 is a deficient number, since it is larger than the sum of its proper divisors (53576615).

126144025 is a wasteful number, since it uses less digits than its factorization.

126144025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3873 (or 3868 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 126144025 is about 11231.3857114783. The cubic root of 126144025 is about 501.5207366972.

Adding to 126144025 its reverse (520441621), we get a palindrome (646585646).

The spelling of 126144025 in words is "one hundred twenty-six million, one hundred forty-four thousand, twenty-five".