126473873 has 4 divisors (see below), whose sum is σ = 126774708. Its totient is φ = 126173040.

The previous prime is 126473857. The next prime is 126473891. The reversal of 126473873 is 378374621.

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

It can be written as a sum of positive squares in 2 ways, for example, as 27112849 + 99361024 = 5207^2 + 9968^2 .

It is a cyclic number.

It is not a de Polignac number, because 126473873 - 2⁴ = 126473857 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126473873.

It is not an unprimeable number, because it can be changed into a prime (126473813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149786 + ... + 150627.

It is an arithmetic number, because the mean of its divisors is an integer number (31693677).

Almost surely, 2^126473873 is an apocalyptic number.

It is an amenable number.

126473873 is a deficient number, since it is larger than the sum of its proper divisors (300835).

126473873 is an equidigital number, since it uses as much as digits as its factorization.

126473873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300834.

The product of its digits is 169344, while the sum is 41.

The square root of 126473873 is about 11246.0603324009. The cubic root of 126473873 is about 501.9574904613.

The spelling of 126473873 in words is "one hundred twenty-six million, four hundred seventy-three thousand, eight hundred seventy-three".