126393947 has 16 divisors (see below), whose sum is σ = 139560960. Its totient is φ = 113933952.

The previous prime is 126393941. The next prime is 126393979. The reversal of 126393947 is 749393621.

It is a cyclic number.

It is not a de Polignac number, because 126393947 - 2¹⁰ = 126392923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126393898 and 126393907.

It is not an unprimeable number, because it can be changed into a prime (126393941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96803 + ... + 98099.

It is an arithmetic number, because the mean of its divisors is an integer number (8722560).

Almost surely, 2^126393947 is an apocalyptic number.

126393947 is a deficient number, since it is larger than the sum of its proper divisors (13167013).

126393947 is a wasteful number, since it uses less digits than its factorization.

126393947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1562.

The product of its digits is 244944, while the sum is 44.

The square root of 126393947 is about 11242.5062597270. The cubic root of 126393947 is about 501.8517297282.

The spelling of 126393947 in words is "one hundred twenty-six million, three hundred ninety-three thousand, nine hundred forty-seven".