925785145 has 4 divisors (see below), whose sum is σ = 1110942180. Its totient is φ = 740628112.

The previous prime is 925785143. The next prime is 925785151. The reversal of 925785145 is 541587529.

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

It can be written as a sum of positive squares in 2 ways, for example, as 111767184 + 814017961 = 10572^2 + 28531^2 .

It is a cyclic number.

It is not a de Polignac number, because 925785145 - 2¹ = 925785143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 925785095 and 925785104.

It is not an unprimeable number, because it can be changed into a prime (925785143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92578510 + ... + 92578519.

It is an arithmetic number, because the mean of its divisors is an integer number (277735545).

Almost surely, 2^925785145 is an apocalyptic number.

It is an amenable number.

925785145 is a deficient number, since it is larger than the sum of its proper divisors (185157035).

925785145 is a wasteful number, since it uses less digits than its factorization.

925785145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185157034.

The product of its digits is 504000, while the sum is 46.

The square root of 925785145 is about 30426.7176179094. The cubic root of 925785145 is about 974.6231793896.

The spelling of 925785145 in words is "nine hundred twenty-five million, seven hundred eighty-five thousand, one hundred forty-five".