126434642 has 8 divisors (see below), whose sum is σ = 189856332. Its totient is φ = 63149200.

The previous prime is 126434617. The next prime is 126434669. The reversal of 126434642 is 246434621.

It can be written as a sum of positive squares in 2 ways, for example, as 105904681 + 20529961 = 10291^2 + 4531^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 126434599 and 126434608.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31709 + ... + 35472.

Almost surely, 2^126434642 is an apocalyptic number.

126434642 is a deficient number, since it is larger than the sum of its proper divisors (63421690).

126434642 is an equidigital number, since it uses as much as digits as its factorization.

126434642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68124.

The product of its digits is 27648, while the sum is 32.

The square root of 126434642 is about 11244.3159863106. The cubic root of 126434642 is about 501.9055842710.

The spelling of 126434642 in words is "one hundred twenty-six million, four hundred thirty-four thousand, six hundred forty-two".