126438145 has 8 divisors (see below), whose sum is σ = 152026920. Its totient is φ = 100949760.

The previous prime is 126438077. The next prime is 126438161. The reversal of 126438145 is 541834621.

It can be written as a sum of positive squares in 4 ways, for example, as 44408896 + 82029249 = 6664^2 + 9057^2 .

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

It is not a de Polignac number, because 126438145 - 2¹⁷ = 126307073 is a prime.

It is a super-2 number, since 2×126438145² = 31973209022082050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 126438145.

It is an unprimeable number.

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, 22296 + ... + 27385.

It is an arithmetic number, because the mean of its divisors is an integer number (19003365).

Almost surely, 2^126438145 is an apocalyptic number.

It is an amenable number.

126438145 is a deficient number, since it is larger than the sum of its proper divisors (25588775).

126438145 is an equidigital number, since it uses as much as digits as its factorization.

126438145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50195.

The product of its digits is 23040, while the sum is 34.

The square root of 126438145 is about 11244.4717528215. The cubic root of 126438145 is about 501.9102194959.

The spelling of 126438145 in words is "one hundred twenty-six million, four hundred thirty-eight thousand, one hundred forty-five".