925127009 has 4 divisors (see below), whose sum is σ = 925542804. Its totient is φ = 924711216.

The previous prime is 925126981. The next prime is 925127011. The reversal of 925127009 is 900721529.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 900721529 = 139 ⋅6480011.

It can be written as a sum of positive squares in 2 ways, for example, as 624000400 + 301126609 = 24980^2 + 17353^2 .

It is a cyclic number.

It is not a de Polignac number, because 925127009 - 2⁸ = 925126753 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 925127009.

It is not an unprimeable number, because it can be changed into a prime (925127039) 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, 204542 + ... + 209015.

It is an arithmetic number, because the mean of its divisors is an integer number (231385701).

Almost surely, 2^925127009 is an apocalyptic number.

It is an amenable number.

925127009 is a deficient number, since it is larger than the sum of its proper divisors (415795).

925127009 is a wasteful number, since it uses less digits than its factorization.

925127009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415794.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 925127009 is about 30415.9005949191. The cubic root of 925127009 is about 974.3921730696.

The spelling of 925127009 in words is "nine hundred twenty-five million, one hundred twenty-seven thousand, nine".