145632825 has 36 divisors (see below), whose sum is σ = 280915180. Its totient is φ = 71694720.

The previous prime is 145632821. The next prime is 145632847. The reversal of 145632825 is 528236541.

145632825 is a `hidden beast` number, since 14 + 5 + 632 + 8 + 2 + 5 = 666.

145632825 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 6 ways, for example, as 33039504 + 112593321 = 5748^2 + 10611^2 .

It is not a de Polignac number, because 145632825 - 2² = 145632821 is a prime.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 145632825.

It is not an unprimeable number, because it can be changed into a prime (145632821) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 21970 + ... + 27819.

Almost surely, 2^145632825 is an apocalyptic number.

145632825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145632825 is a deficient number, since it is larger than the sum of its proper divisors (135282355).

145632825 is a wasteful number, since it uses less digits than its factorization.

145632825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49818 (or 49810 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 145632825 is about 12067.8425992387. The cubic root of 145632825 is about 526.1219543543.

The spelling of 145632825 in words is "one hundred forty-five million, six hundred thirty-two thousand, eight hundred twenty-five".