146005225 has 12 divisors (see below), whose sum is σ = 181210624. Its totient is φ = 116698320.

The previous prime is 146005207. The next prime is 146005241. The reversal of 146005225 is 522500641.

It is a de Polignac number, because none of the positive numbers 2^k-146005225 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 146005225.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37312 + ... + 41038.

Almost surely, 2^146005225 is an apocalyptic number.

It is an amenable number.

146005225 is a deficient number, since it is larger than the sum of its proper divisors (35205399).

146005225 is a wasteful number, since it uses less digits than its factorization.

146005225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5304 (or 5299 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 146005225 is about 12083.2621836986. The cubic root of 146005225 is about 526.5700242389.

Adding to 146005225 its reverse (522500641), we get a palindrome (668505866).

The spelling of 146005225 in words is "one hundred forty-six million, five thousand, two hundred twenty-five".