126045005 has 4 divisors (see below), whose sum is σ = 151254012. Its totient is φ = 100836000.

The previous prime is 126044999. The next prime is 126045013. The reversal of 126045005 is 500540621.

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 14235529 + 111809476 = 3773^2 + 10574^2 .

It is a de Polignac number, because none of the positive numbers 2^k-126045005 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, 12604496 + ... + 12604505.

It is an arithmetic number, because the mean of its divisors is an integer number (37813503).

Almost surely, 2^126045005 is an apocalyptic number.

It is an amenable number.

126045005 is a deficient number, since it is larger than the sum of its proper divisors (25209007).

126045005 is an equidigital number, since it uses as much as digits as its factorization.

126045005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25209006.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 126045005 is about 11226.9766633765. The cubic root of 126045005 is about 501.3894751409.

Adding to 126045005 its reverse (500540621), we get a palindrome (626585626).

The spelling of 126045005 in words is "one hundred twenty-six million, forty-five thousand, five".