126434263 has 4 divisors (see below), whose sum is σ = 127271728. Its totient is φ = 125596800.

The previous prime is 126434239. The next prime is 126434267. The reversal of 126434263 is 362434621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 126434263 - 2⁹ = 126433751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126434267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 418506 + ... + 418807.

It is an arithmetic number, because the mean of its divisors is an integer number (31817932).

Almost surely, 2^126434263 is an apocalyptic number.

126434263 is a deficient number, since it is larger than the sum of its proper divisors (837465).

126434263 is an equidigital number, since it uses as much as digits as its factorization.

126434263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837464.

The product of its digits is 20736, while the sum is 31.

The square root of 126434263 is about 11244.2991333386. The cubic root of 126434263 is about 501.9050827670.

Adding to 126434263 its reverse (362434621), we get a palindrome (488868884).

The spelling of 126434263 in words is "one hundred twenty-six million, four hundred thirty-four thousand, two hundred sixty-three".