145000025 has 12 divisors (see below), whose sum is σ = 180202752. Its totient is φ = 115740240.

The previous prime is 144999991. The next prime is 145000033. The reversal of 145000025 is 520000541.

It is not a de Polignac number, because 145000025 - 2²⁰ = 143951449 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144999967 and 145000012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5312 + ... + 17838.

It is an arithmetic number, because the mean of its divisors is an integer number (15016896).

Almost surely, 2^145000025 is an apocalyptic number.

It is an amenable number.

145000025 is a deficient number, since it is larger than the sum of its proper divisors (35202727).

145000025 is a wasteful number, since it uses less digits than its factorization.

145000025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13000 (or 12995 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 145000025 is about 12041.5956168607. The cubic root of 145000025 is about 525.3588174423.

Adding to 145000025 its reverse (520000541), we get a palindrome (665000566).

The spelling of 145000025 in words is "one hundred forty-five million, twenty-five", and thus it is an aban number.