126443137 has 4 divisors (see below), whose sum is σ = 128330416. Its totient is φ = 124555860.

The previous prime is 126443131. The next prime is 126443147. The reversal of 126443137 is 731344621.

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 not a de Polignac number, because 126443137 - 2³ = 126443129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126443099 and 126443108.

It is not an unprimeable number, because it can be changed into a prime (126443131) 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, 943539 + ... + 943672.

It is an arithmetic number, because the mean of its divisors is an integer number (32082604).

Almost surely, 2^126443137 is an apocalyptic number.

It is an amenable number.

126443137 is a deficient number, since it is larger than the sum of its proper divisors (1887279).

126443137 is an equidigital number, since it uses as much as digits as its factorization.

126443137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1887278.

The product of its digits is 12096, while the sum is 31.

The square root of 126443137 is about 11244.6937263760. The cubic root of 126443137 is about 501.9168248413.

Adding to 126443137 its reverse (731344621), we get a palindrome (857787758).

The spelling of 126443137 in words is "one hundred twenty-six million, four hundred forty-three thousand, one hundred thirty-seven".