126443741 has 8 divisors (see below), whose sum is σ = 131372280. Its totient is φ = 121553152.

The previous prime is 126443731. The next prime is 126443791. The reversal of 126443741 is 147344621.

It can be written as a sum of positive squares in 4 ways, for example, as 19404025 + 107039716 = 4405^2 + 10346^2 .

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

It is not a de Polignac number, because 126443741 - 2¹⁰ = 126442717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 126443698 and 126443707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126443701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2600 + ... + 16113.

It is an arithmetic number, because the mean of its divisors is an integer number (16421535).

Almost surely, 2^126443741 is an apocalyptic number.

It is an amenable number.

126443741 is a deficient number, since it is larger than the sum of its proper divisors (4928539).

126443741 is a wasteful number, since it uses less digits than its factorization.

126443741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18975.

The product of its digits is 16128, while the sum is 32.

The square root of 126443741 is about 11244.7205834560. The cubic root of 126443741 is about 501.9176240339.

The spelling of 126443741 in words is "one hundred twenty-six million, four hundred forty-three thousand, seven hundred forty-one".