126840782 has 8 divisors (see below), whose sum is σ = 193101096. Its totient is φ = 62473752.

The previous prime is 126840781. The next prime is 126840811. The reversal of 126840782 is 287048621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126840781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 473153 + ... + 473420.

It is an arithmetic number, because the mean of its divisors is an integer number (24137637).

Almost surely, 2^126840782 is an apocalyptic number.

126840782 is a deficient number, since it is larger than the sum of its proper divisors (66260314).

126840782 is an equidigital number, since it uses as much as digits as its factorization.

126840782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946642.

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 126840782 is about 11262.3612977031. The cubic root of 126840782 is about 502.4424256867.

The spelling of 126840782 in words is "one hundred twenty-six million, eight hundred forty thousand, seven hundred eighty-two".