126878583 has 8 divisors (see below), whose sum is σ = 182184688. Its totient is φ = 78079104.

The previous prime is 126878581. The next prime is 126878611. The reversal of 126878583 is 385878621.

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

It is not a de Polignac number, because 126878583 - 2¹ = 126878581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126878581) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1626610 + ... + 1626687.

It is an arithmetic number, because the mean of its divisors is an integer number (22773086).

Almost surely, 2^126878583 is an apocalyptic number.

126878583 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

126878583 is a deficient number, since it is larger than the sum of its proper divisors (55306105).

126878583 is a wasteful number, since it uses less digits than its factorization.

126878583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3253313.

The product of its digits is 645120, while the sum is 48.

The square root of 126878583 is about 11264.0393731556. The cubic root of 126878583 is about 502.4923332411.

The spelling of 126878583 in words is "one hundred twenty-six million, eight hundred seventy-eight thousand, five hundred eighty-three".