145345224 has 32 divisors (see below), whose sum is σ = 364691520. Its totient is φ = 48271296.

The previous prime is 145345217. The next prime is 145345243. The reversal of 145345224 is 422543541.

It is a super-2 number, since 2×145345224² = 42250468279220352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145345191 and 145345200.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4284 + ... + 17579.

It is an arithmetic number, because the mean of its divisors is an integer number (11396610).

Almost surely, 2^145345224 is an apocalyptic number.

It is an amenable number.

145345224 is an abundant number, since it is smaller than the sum of its proper divisors (219346296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145345224 is a wasteful number, since it uses less digits than its factorization.

145345224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22149 (or 22145 counting only the distinct ones).

The product of its digits is 19200, while the sum is 30.

The square root of 145345224 is about 12055.9207031234. The cubic root of 145345224 is about 525.7753911948.

Adding to 145345224 its reverse (422543541), we get a palindrome (567888765).

The spelling of 145345224 in words is "one hundred forty-five million, three hundred forty-five thousand, two hundred twenty-four".