126740267 has 4 divisors (see below), whose sum is σ = 127018056. Its totient is φ = 126462480.

The previous prime is 126740171. The next prime is 126740293. The reversal of 126740267 is 762047621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 762047621 = 53 ⋅14378257.

It is a cyclic number.

It is not a de Polignac number, because 126740267 - 2¹⁰ = 126739243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126740567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138209 + ... + 139122.

It is an arithmetic number, because the mean of its divisors is an integer number (31754514).

Almost surely, 2^126740267 is an apocalyptic number.

126740267 is a deficient number, since it is larger than the sum of its proper divisors (277789).

126740267 is an equidigital number, since it uses as much as digits as its factorization.

126740267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277788.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 126740267 is about 11257.8979831938. The cubic root of 126740267 is about 502.3096704170.

Adding to 126740267 its reverse (762047621), we get a palindrome (888787888).

The spelling of 126740267 in words is "one hundred twenty-six million, seven hundred forty thousand, two hundred sixty-seven".