126434849 has 4 divisors (see below), whose sum is σ = 127070400. Its totient is φ = 125799300.

The previous prime is 126434837. The next prime is 126434851. The reversal of 126434849 is 948434621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126434849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126434449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317477 + ... + 317874.

It is an arithmetic number, because the mean of its divisors is an integer number (31767600).

Almost surely, 2^126434849 is an apocalyptic number.

It is an amenable number.

126434849 is a deficient number, since it is larger than the sum of its proper divisors (635551).

126434849 is an equidigital number, since it uses as much as digits as its factorization.

126434849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635550.

The product of its digits is 165888, while the sum is 41.

The square root of 126434849 is about 11244.3251909574. The cubic root of 126434849 is about 501.9058581790.

The spelling of 126434849 in words is "one hundred twenty-six million, four hundred thirty-four thousand, eight hundred forty-nine".