145579225 has 24 divisors (see below), whose sum is σ = 199451520. Its totient is φ = 104520000.

The previous prime is 145579207. The next prime is 145579237. The reversal of 145579225 is 522975541.

It is a happy number.

It is not a de Polignac number, because 145579225 - 2¹⁹ = 145054937 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18375 + ... + 25075.

It is an arithmetic number, because the mean of its divisors is an integer number (8310480).

Almost surely, 2^145579225 is an apocalyptic number.

It is an amenable number.

145579225 is a deficient number, since it is larger than the sum of its proper divisors (53872295).

145579225 is a wasteful number, since it uses less digits than its factorization.

145579225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6801 (or 6796 counting only the distinct ones).

The product of its digits is 126000, while the sum is 40.

The square root of 145579225 is about 12065.6216168086. The cubic root of 145579225 is about 526.0574002330.

The spelling of 145579225 in words is "one hundred forty-five million, five hundred seventy-nine thousand, two hundred twenty-five".