126528457 has 16 divisors (see below), whose sum is σ = 141758784. Its totient is φ = 111960000.

The previous prime is 126528431. The next prime is 126528481. The reversal of 126528457 is 754825621.

It is a cyclic number.

It is not a de Polignac number, because 126528457 - 2¹⁵ = 126495689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126528407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66838 + ... + 68704.

It is an arithmetic number, because the mean of its divisors is an integer number (8859924).

Almost surely, 2^126528457 is an apocalyptic number.

It is an amenable number.

126528457 is a deficient number, since it is larger than the sum of its proper divisors (15230327).

126528457 is a wasteful number, since it uses less digits than its factorization.

126528457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2040.

The product of its digits is 134400, while the sum is 40.

The square root of 126528457 is about 11248.4868760203. The cubic root of 126528457 is about 502.0296922168.

The spelling of 126528457 in words is "one hundred twenty-six million, five hundred twenty-eight thousand, four hundred fifty-seven".