145624325 has 72 divisors (see below), whose sum is σ = 233583264. Its totient is φ = 89040000.

The previous prime is 145624319. The next prime is 145624351. The reversal of 145624325 is 523426541.

It is not a de Polignac number, because 145624325 - 2⁸ = 145624069 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145624291 and 145624300.

It is a congruent number.

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 71 ways as a sum of consecutive naturals, for example, 1360922 + ... + 1361028.

It is an arithmetic number, because the mean of its divisors is an integer number (3244212).

Almost surely, 2^145624325 is an apocalyptic number.

It is an amenable number.

145624325 is a deficient number, since it is larger than the sum of its proper divisors (87958939).

145624325 is a wasteful number, since it uses less digits than its factorization.

145624325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243 (or 231 counting only the distinct ones).

The product of its digits is 28800, while the sum is 32.

The square root of 145624325 is about 12067.4904184756. The cubic root of 145624325 is about 526.1117182838. Note that the first 3 decimals are identical.

The spelling of 145624325 in words is "one hundred forty-five million, six hundred twenty-four thousand, three hundred twenty-five".