126648436 has 12 divisors (see below), whose sum is σ = 234672228. Its totient is φ = 59599232.

The previous prime is 126648413. The next prime is 126648437. The reversal of 126648436 is 634846621.

It can be written as a sum of positive squares in 2 ways, for example, as 94090000 + 32558436 = 9700^2 + 5706^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126648437) 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 3 ways as a sum of consecutive naturals, for example, 931171 + ... + 931306.

It is an arithmetic number, because the mean of its divisors is an integer number (19556019).

Almost surely, 2^126648436 is an apocalyptic number.

It is an amenable number.

126648436 is a deficient number, since it is larger than the sum of its proper divisors (108023792).

126648436 is a wasteful number, since it uses less digits than its factorization.

126648436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1862498 (or 1862496 counting only the distinct ones).

The product of its digits is 165888, while the sum is 40.

The square root of 126648436 is about 11253.8187296579. The cubic root of 126648436 is about 502.1883231775.

The spelling of 126648436 in words is "one hundred twenty-six million, six hundred forty-eight thousand, four hundred thirty-six".