145059025 has 24 divisors (see below), whose sum is σ = 185784984. Its totient is φ = 112281600.

The previous prime is 145059001. The next prime is 145059029. The reversal of 145059025 is 520950541.

It can be written as a sum of positive squares in 12 ways, for example, as 30162064 + 114896961 = 5492^2 + 10719^2 .

It is not a de Polignac number, because 145059025 - 2⁹ = 145058513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145059029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 139909 + ... + 140941.

It is an arithmetic number, because the mean of its divisors is an integer number (7741041).

Almost surely, 2^145059025 is an apocalyptic number.

It is an amenable number.

145059025 is a deficient number, since it is larger than the sum of its proper divisors (40725959).

145059025 is a wasteful number, since it uses less digits than its factorization.

145059025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221 (or 1216 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 145059025 is about 12044.0452091480. The cubic root of 145059025 is about 525.4300633314.

The spelling of 145059025 in words is "one hundred forty-five million, fifty-nine thousand, twenty-five".