126291804 has 96 divisors (see below), whose sum is σ = 321753600. Its totient is φ = 38446848.

The previous prime is 126291791. The next prime is 126291821. The reversal of 126291804 is 408192621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 847522 + ... + 847670.

It is an arithmetic number, because the mean of its divisors is an integer number (3351600).

Almost surely, 2^126291804 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126291804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160876800).

126291804 is an abundant number, since it is smaller than the sum of its proper divisors (195461796).

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

126291804 is a wasteful number, since it uses less digits than its factorization.

126291804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299 (or 297 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 126291804 is about 11237.9626267398. The cubic root of 126291804 is about 501.7165058056.

The spelling of 126291804 in words is "one hundred twenty-six million, two hundred ninety-one thousand, eight hundred four".