126528317 has 4 divisors (see below), whose sum is σ = 129470880. Its totient is φ = 123585756.

The previous prime is 126528307. The next prime is 126528373. The reversal of 126528317 is 713825621.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 713825621 = 41 ⋅17410381.

It is a cyclic number.

It is not a de Polignac number, because 126528317 - 2⁴ = 126528301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126528307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1471217 + ... + 1471302.

It is an arithmetic number, because the mean of its divisors is an integer number (32367720).

Almost surely, 2^126528317 is an apocalyptic number.

It is an amenable number.

126528317 is a deficient number, since it is larger than the sum of its proper divisors (2942563).

126528317 is an equidigital number, since it uses as much as digits as its factorization.

126528317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2942562.

The product of its digits is 20160, while the sum is 35.

The square root of 126528317 is about 11248.4806529593. The cubic root of 126528317 is about 502.0295070564.

The spelling of 126528317 in words is "one hundred twenty-six million, five hundred twenty-eight thousand, three hundred seventeen".