126376169 has 4 divisors (see below), whose sum is σ = 126928260. Its totient is φ = 125824080.

The previous prime is 126376153. The next prime is 126376189. The reversal of 126376169 is 961673621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 97614400 + 28761769 = 9880^2 + 5363^2 .

It is a cyclic number.

It is not a de Polignac number, because 126376169 - 2⁴ = 126376153 is a prime.

It is a super-2 number, since 2×126376169² = 31941872182233122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126376109) 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, 275702 + ... + 276159.

It is an arithmetic number, because the mean of its divisors is an integer number (31732065).

Almost surely, 2^126376169 is an apocalyptic number.

It is an amenable number.

126376169 is a deficient number, since it is larger than the sum of its proper divisors (552091).

126376169 is an equidigital number, since it uses as much as digits as its factorization.

126376169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552090.

The product of its digits is 81648, while the sum is 41.

The square root of 126376169 is about 11241.7155719223. The cubic root of 126376169 is about 501.8281992279.

The spelling of 126376169 in words is "one hundred twenty-six million, three hundred seventy-six thousand, one hundred sixty-nine".