126452705 has 8 divisors (see below), whose sum is σ = 151994472. Its totient is φ = 100994688.

The previous prime is 126452671. The next prime is 126452737. The reversal of 126452705 is 507254621.

126452705 = 7951² + 7952².

It can be written as a sum of positive squares in 4 ways, for example, as 2531281 + 123921424 = 1591^2 + 11132^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 126452705 - 2¹⁶ = 126387169 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 17564 + ... + 23693.

It is an arithmetic number, because the mean of its divisors is an integer number (18999309).

Almost surely, 2^126452705 is an apocalyptic number.

126452705 is the 7952-nd centered square number.

It is an amenable number.

126452705 is a deficient number, since it is larger than the sum of its proper divisors (25541767).

126452705 is an equidigital number, since it uses as much as digits as its factorization.

126452705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41875.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 126452705 is about 11245.1191634415. The cubic root of 126452705 is about 501.9294846006.

The spelling of 126452705 in words is "one hundred twenty-six million, four hundred fifty-two thousand, seven hundred five".