126747969 has 8 divisors (see below), whose sum is σ = 169069440. Its totient is φ = 84462576.

The previous prime is 126747967. The next prime is 126747983. The reversal of 126747969 is 969747621.

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

It is not a de Polignac number, because 126747969 - 2¹ = 126747967 is a prime.

It is a super-2 number, since 2×126747969² = 32130095291249922, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (126747967) 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, 667 + ... + 15935.

It is an arithmetic number, because the mean of its divisors is an integer number (21133680).

Almost surely, 2^126747969 is an apocalyptic number.

It is an amenable number.

126747969 is a deficient number, since it is larger than the sum of its proper divisors (42321471).

126747969 is a wasteful number, since it uses less digits than its factorization.

126747969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18039.

The product of its digits is 1143072, while the sum is 51.

The square root of 126747969 is about 11258.2400489597. The cubic root of 126747969 is about 502.3198453225.

The spelling of 126747969 in words is "one hundred twenty-six million, seven hundred forty-seven thousand, nine hundred sixty-nine".