126150565 has 4 divisors (see below), whose sum is σ = 151380684. Its totient is φ = 100920448.

The previous prime is 126150553. The next prime is 126150571. The reversal of 126150565 is 565051621.

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 39325441 + 86825124 = 6271^2 + 9318^2 .

It is a cyclic number.

It is not a de Polignac number, because 126150565 - 2⁵ = 126150533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12615052 + ... + 12615061.

It is an arithmetic number, because the mean of its divisors is an integer number (37845171).

Almost surely, 2^126150565 is an apocalyptic number.

It is an amenable number.

126150565 is a deficient number, since it is larger than the sum of its proper divisors (25230119).

126150565 is an equidigital number, since it uses as much as digits as its factorization.

126150565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25230118.

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 126150565 is about 11231.6768561066. The cubic root of 126150565 is about 501.5294037452.

The spelling of 126150565 in words is "one hundred twenty-six million, one hundred fifty thousand, five hundred sixty-five".