126261473 has 4 divisors (see below), whose sum is σ = 135973908. Its totient is φ = 116549040.

The previous prime is 126261469. The next prime is 126261493. The reversal of 126261473 is 374162621.

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 42667024 + 83594449 = 6532^2 + 9143^2 .

It is a cyclic number.

It is not a de Polignac number, because 126261473 - 2² = 126261469 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126261493) 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, 4856198 + ... + 4856223.

It is an arithmetic number, because the mean of its divisors is an integer number (33993477).

Almost surely, 2^126261473 is an apocalyptic number.

126261473 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

126261473 is a deficient number, since it is larger than the sum of its proper divisors (9712435).

126261473 is an equidigital number, since it uses as much as digits as its factorization.

126261473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9712434.

The product of its digits is 12096, while the sum is 32.

The square root of 126261473 is about 11236.6130573229. The cubic root of 126261473 is about 501.6763375042.

The spelling of 126261473 in words is "one hundred twenty-six million, two hundred sixty-one thousand, four hundred seventy-three".