126909276 has 48 divisors (see below), whose sum is σ = 321922944. Its totient is φ = 38678976.

The previous prime is 126909253. The next prime is 126909329. The reversal of 126909276 is 672909621.

It is a super-2 number, since 2×126909276² = 32211928669688352, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12891 + ... + 20493.

It is an arithmetic number, because the mean of its divisors is an integer number (6706728).

Almost surely, 2^126909276 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 126909276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160961472).

126909276 is an abundant number, since it is smaller than the sum of its proper divisors (195013668).

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

126909276 is a wasteful number, since it uses less digits than its factorization.

126909276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7730 (or 7728 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 126909276 is about 11265.4017238623. The cubic root of 126909276 is about 502.5328490196.

The spelling of 126909276 in words is "one hundred twenty-six million, nine hundred nine thousand, two hundred seventy-six".