145683225 has 24 divisors (see below), whose sum is σ = 267626720. Its totient is φ = 77697360.

The previous prime is 145683199. The next prime is 145683257. The reversal of 145683225 is 522386541.

It is not a de Polignac number, because 145683225 - 2¹² = 145679129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145683225.

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, 107239 + ... + 108588.

Almost surely, 2^145683225 is an apocalyptic number.

145683225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145683225 is a deficient number, since it is larger than the sum of its proper divisors (121943495).

145683225 is a wasteful number, since it uses less digits than its factorization.

145683225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215846 (or 215835 counting only the distinct ones).

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

The square root of 145683225 is about 12069.9306128909. The cubic root of 145683225 is about 526.1826400506.

It can be divided in two parts, 1456 and 83225, that added together give a square (84681 = 291²).

The spelling of 145683225 in words is "one hundred forty-five million, six hundred eighty-three thousand, two hundred twenty-five".