126387618 has 32 divisors (see below), whose sum is σ = 289941120. Its totient is φ = 35978880.

The previous prime is 126387607. The next prime is 126387623. The reversal of 126387618 is 816783621.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 126387618.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 6448 + ... + 17156.

It is an arithmetic number, because the mean of its divisors is an integer number (9060660).

Almost surely, 2^126387618 is an apocalyptic number.

126387618 is an abundant number, since it is smaller than the sum of its proper divisors (163553502).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126387618 is a wasteful number, since it uses less digits than its factorization.

126387618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11002.

The product of its digits is 96768, while the sum is 42.

The square root of 126387618 is about 11242.2247798201. The cubic root of 126387618 is about 501.8433530807.

The spelling of 126387618 in words is "one hundred twenty-six million, three hundred eighty-seven thousand, six hundred eighteen".