126458947 has 4 divisors (see below), whose sum is σ = 127264576. Its totient is φ = 125653320.

The previous prime is 126458939. The next prime is 126458957. The reversal of 126458947 is 749854621.

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 126458947 - 2³ = 126458939 is a prime.

It is a super-3 number, since 3×126458947³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126458897 and 126458906.

It is not an unprimeable number, because it can be changed into a prime (126458957) 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, 402579 + ... + 402892.

It is an arithmetic number, because the mean of its divisors is an integer number (31816144).

Almost surely, 2^126458947 is an apocalyptic number.

126458947 is a deficient number, since it is larger than the sum of its proper divisors (805629).

126458947 is an equidigital number, since it uses as much as digits as its factorization.

126458947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805628.

The product of its digits is 483840, while the sum is 46.

The square root of 126458947 is about 11245.3967026513. The cubic root of 126458947 is about 501.9377432675.

The spelling of 126458947 in words is "one hundred twenty-six million, four hundred fifty-eight thousand, nine hundred forty-seven".