126144531 has 24 divisors (see below), whose sum is σ = 184710240. Its totient is φ = 82951296.

The previous prime is 126144509. The next prime is 126144533. The reversal of 126144531 is 135441621.

It is a happy number.

126144531 is a `hidden beast` number, since 1 + 2 + 614 + 45 + 3 + 1 = 666.

It is not a de Polignac number, because 126144531 - 2⁹ = 126144019 is a prime.

It is a super-2 number, since 2×126144531² = 31824885402419922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 126144495 and 126144504.

It is not an unprimeable number, because it can be changed into a prime (126144533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 324085 + ... + 324473.

It is an arithmetic number, because the mean of its divisors is an integer number (7696260).

Almost surely, 2^126144531 is an apocalyptic number.

126144531 is a deficient number, since it is larger than the sum of its proper divisors (58565709).

126144531 is a wasteful number, since it uses less digits than its factorization.

126144531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795 (or 792 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 126144531 is about 11231.4082376165. The cubic root of 126144531 is about 501.5214072777.

The spelling of 126144531 in words is "one hundred twenty-six million, one hundred forty-four thousand, five hundred thirty-one".