145853728025 has 6 divisors (see below), whose sum is σ = 180858622782. Its totient is φ = 116682982400.

The previous prime is 145853728021. The next prime is 145853728063. The reversal of 145853728025 is 520827358541.

145853728025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 45721985929 + 100131742096 = 213827^2 + 316436^2 .

It is not a de Polignac number, because 145853728025 - 2² = 145853728021 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145853728021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2917074536 + ... + 2917074585.

It is an arithmetic number, because the mean of its divisors is an integer number (30143103797).

Almost surely, 2^145853728025 is an apocalyptic number.

It is an amenable number.

145853728025 is a deficient number, since it is larger than the sum of its proper divisors (35004894757).

145853728025 is an equidigital number, since it uses as much as digits as its factorization.

145853728025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5834149131 (or 5834149126 counting only the distinct ones).

The product of its (nonzero) digits is 2688000, while the sum is 50.

The spelling of 145853728025 in words is "one hundred forty-five billion, eight hundred fifty-three million, seven hundred twenty-eight thousand, twenty-five".