126369947 has 8 divisors (see below), whose sum is σ = 138100032. Its totient is φ = 114680200.

The previous prime is 126369923. The next prime is 126369949. The reversal of 126369947 is 749963621.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 126369947 - 2¹² = 126365851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126369949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3329 + ... + 16242.

It is an arithmetic number, because the mean of its divisors is an integer number (17262504).

Almost surely, 2^126369947 is an apocalyptic number.

126369947 is a deficient number, since it is larger than the sum of its proper divisors (11730085).

126369947 is a wasteful number, since it uses less digits than its factorization.

126369947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20169.

The product of its digits is 489888, while the sum is 47.

The square root of 126369947 is about 11241.4388313952. The cubic root of 126369947 is about 501.8199634286.

It can be divided in two parts, 126 and 369947, that added together give a palindrome (370073).

The spelling of 126369947 in words is "one hundred twenty-six million, three hundred sixty-nine thousand, nine hundred forty-seven".