126969385 has 8 divisors (see below), whose sum is σ = 156481416. Its totient is φ = 98830080.

The previous prime is 126969383. The next prime is 126969433. The reversal of 126969385 is 583969621.

It can be written as a sum of positive squares in 4 ways, for example, as 15202201 + 111767184 = 3899^2 + 10572^2 .

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

It is not a de Polignac number, because 126969385 - 2¹ = 126969383 is a prime.

It is a super-2 number, since 2×126969385² = 32242449454556450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126969383) 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 7 ways as a sum of consecutive naturals, for example, 342976 + ... + 343345.

It is an arithmetic number, because the mean of its divisors is an integer number (19560177).

Almost surely, 2^126969385 is an apocalyptic number.

It is an amenable number.

126969385 is a deficient number, since it is larger than the sum of its proper divisors (29512031).

126969385 is an equidigital number, since it uses as much as digits as its factorization.

126969385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686363.

The product of its digits is 699840, while the sum is 49.

The square root of 126969385 is about 11268.0692667378. The cubic root of 126969385 is about 502.6121759746.

The spelling of 126969385 in words is "one hundred twenty-six million, nine hundred sixty-nine thousand, three hundred eighty-five".