126743706 has 12 divisors (see below), whose sum is σ = 274611402. Its totient is φ = 42247896.

The previous prime is 126743689. The next prime is 126743707. The reversal of 126743706 is 607347621.

It can be written as a sum of positive squares in only one way, i.e., 89472681 + 37271025 = 9459^2 + 6105^2 .

It is a super-2 number, since 2×126743706² = 32127934021228872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (126743707) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3520641 + ... + 3520676.

Almost surely, 2^126743706 is an apocalyptic number.

126743706 is an abundant number, since it is smaller than the sum of its proper divisors (147867696).

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

126743706 is a wasteful number, since it uses less digits than its factorization.

126743706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7041325 (or 7041322 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 126743706 is about 11258.0507193741. The cubic root of 126743706 is about 502.3142136385.

It can be divided in two parts, 126743 and 706, that added together give a square (127449 = 357²).

The spelling of 126743706 in words is "one hundred twenty-six million, seven hundred forty-three thousand, seven hundred six".