1025612173 has 4 divisors (see below), whose sum is σ = 1060978140. Its totient is φ = 990246208.

The previous prime is 1025612143. The next prime is 1025612197. The reversal of 1025612173 is 3712165201.

It is a happy number.

1025612173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 707453604 + 318158569 = 26598^2 + 17837^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1025612173 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 (1025612143) 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, 17682940 + ... + 17682997.

It is an arithmetic number, because the mean of its divisors is an integer number (265244535).

Almost surely, 2^1025612173 is an apocalyptic number.

It is an amenable number.

1025612173 is a deficient number, since it is larger than the sum of its proper divisors (35365967).

1025612173 is an equidigital number, since it uses as much as digits as its factorization.

1025612173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35365966.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 1025612173 is about 32025.1802961357. The cubic root of 1025612173 is about 1008.4655236813.

Adding to 1025612173 its reverse (3712165201), we get a palindrome (4737777374).

The spelling of 1025612173 in words is "one billion, twenty-five million, six hundred twelve thousand, one hundred seventy-three".