126113573 has 4 divisors (see below), whose sum is σ = 126559488. Its totient is φ = 125667660.

The previous prime is 126113563. The next prime is 126113579. The reversal of 126113573 is 375311621.

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, and also an emirpimes, since its reverse is a distinct semiprime: 375311621 = 827 ⋅453823.

It is a cyclic number.

It is not a de Polignac number, because 126113573 - 2¹⁶ = 126048037 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 (126113579) 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, 222533 + ... + 223098.

It is an arithmetic number, because the mean of its divisors is an integer number (31639872).

Almost surely, 2^126113573 is an apocalyptic number.

It is an amenable number.

126113573 is a deficient number, since it is larger than the sum of its proper divisors (445915).

126113573 is an equidigital number, since it uses as much as digits as its factorization.

126113573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445914.

The product of its digits is 3780, while the sum is 29.

The square root of 126113573 is about 11230.0299643411. The cubic root of 126113573 is about 501.4803766443.

The spelling of 126113573 in words is "one hundred twenty-six million, one hundred thirteen thousand, five hundred seventy-three".