126773712 has 120 divisors (see below), whose sum is σ = 385032648. Its totient is φ = 38707200.

The previous prime is 126773701. The next prime is 126773737. The reversal of 126773712 is 217377621.

It can be written as a sum of positive squares in 4 ways, for example, as 21013056 + 105760656 = 4584^2 + 10284^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 451012 + ... + 451292.

Almost surely, 2^126773712 is an apocalyptic number.

126773712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126773712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192516324).

126773712 is an abundant number, since it is smaller than the sum of its proper divisors (258258936).

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

126773712 is a wasteful number, since it uses less digits than its factorization.

126773712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549 (or 540 counting only the distinct ones).

The product of its digits is 24696, while the sum is 36.

The square root of 126773712 is about 11259.3832868412. The cubic root of 126773712 is about 502.3538507179.

The spelling of 126773712 in words is "one hundred twenty-six million, seven hundred seventy-three thousand, seven hundred twelve".