126528007 has 4 divisors (see below), whose sum is σ = 127949760. Its totient is φ = 125106256.

The previous prime is 126528001. The next prime is 126528023. The reversal of 126528007 is 700825621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126528007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126528007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126528001) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 710743 + ... + 710920.

It is an arithmetic number, because the mean of its divisors is an integer number (31987440).

Almost surely, 2^126528007 is an apocalyptic number.

126528007 is a deficient number, since it is larger than the sum of its proper divisors (1421753).

126528007 is an equidigital number, since it uses as much as digits as its factorization.

126528007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421752.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 126528007 is about 11248.4668733121. The cubic root of 126528007 is about 502.0290970579.

The spelling of 126528007 in words is "one hundred twenty-six million, five hundred twenty-eight thousand, seven".