126753743 has 4 divisors (see below), whose sum is σ = 126854280. Its totient is φ = 126653208.

The previous prime is 126753727. The next prime is 126753773. The reversal of 126753743 is 347357621.

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 126753743 - 2⁴ = 126753727 is a prime.

It is a super-2 number, since 2×126753743² = 32133022729020098, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126753697 and 126753706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126753773) 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, 48353 + ... + 50906.

It is an arithmetic number, because the mean of its divisors is an integer number (31713570).

Almost surely, 2^126753743 is an apocalyptic number.

126753743 is a deficient number, since it is larger than the sum of its proper divisors (100537).

126753743 is an equidigital number, since it uses as much as digits as its factorization.

126753743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100536.

The product of its digits is 105840, while the sum is 38.

The square root of 126753743 is about 11258.4964804365. The cubic root of 126753743 is about 502.3274729286.

The spelling of 126753743 in words is "one hundred twenty-six million, seven hundred fifty-three thousand, seven hundred forty-three".