1025020300145 has 4 divisors (see below), whose sum is σ = 1230024360180. Its totient is φ = 820016240112.

The previous prime is 1025020300079. The next prime is 1025020300189. The reversal of 1025020300145 is 5410030205201.

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 105126389824 + 919893910321 = 324232^2 + 959111^2 .

It is a cyclic number.

It is not a de Polignac number, because 1025020300145 - 2⁸ = 1025020299889 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1025020300145.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102502030010 + ... + 102502030019.

It is an arithmetic number, because the mean of its divisors is an integer number (307506090045).

Almost surely, 2^{1025020300145} is an apocalyptic number.

It is an amenable number.

1025020300145 is a deficient number, since it is larger than the sum of its proper divisors (205004060035).

1025020300145 is an equidigital number, since it uses as much as digits as its factorization.

1025020300145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205004060034.

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 1025020300145 its reverse (5410030205201), we get a palindrome (6435050505346).

The spelling of 1025020300145 in words is "one trillion, twenty-five billion, twenty million, three hundred thousand, one hundred forty-five".