145242445025 has 12 divisors (see below), whose sum is σ = 180854198400. Its totient is φ = 115707784080.

The previous prime is 145242445021. The next prime is 145242445031. The reversal of 145242445025 is 520544242541.

145242445025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145242445025 - 2² = 145242445021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145242445025.

It is not an unprimeable number, because it can be changed into a prime (145242445021) 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 11 ways as a sum of consecutive naturals, for example, 12148205 + ... + 12160154.

It is an arithmetic number, because the mean of its divisors is an integer number (15071183200).

Almost surely, 2^145242445025 is an apocalyptic number.

It is an amenable number.

145242445025 is a deficient number, since it is larger than the sum of its proper divisors (35611753375).

145242445025 is a wasteful number, since it uses less digits than its factorization.

145242445025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24308608 (or 24308603 counting only the distinct ones).

The product of its (nonzero) digits is 256000, while the sum is 38.

Adding to 145242445025 its reverse (520544242541), we get a palindrome (665786687566).

The spelling of 145242445025 in words is "one hundred forty-five billion, two hundred forty-two million, four hundred forty-five thousand, twenty-five".