126681434 has 24 divisors (see below), whose sum is σ = 210446964. Its totient is φ = 57147200.

The previous prime is 126681391. The next prime is 126681461. The reversal of 126681434 is 434186621.

It can be written as a sum of positive squares in 2 ways, for example, as 117397225 + 9284209 = 10835^2 + 3047^2 .

It is a junction number, because it is equal to n+sod(n) for n = 126681394 and 126681403.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31244 + ... + 35064.

Almost surely, 2^126681434 is an apocalyptic number.

126681434 is a deficient number, since it is larger than the sum of its proper divisors (83765530).

126681434 is a wasteful number, since it uses less digits than its factorization.

126681434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3982 (or 3971 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 126681434 is about 11255.2847143020. The cubic root of 126681434 is about 502.2319341156.

The spelling of 126681434 in words is "one hundred twenty-six million, six hundred eighty-one thousand, four hundred thirty-four".