1601224 has 8 divisors (see below), whose sum is σ = 3002310. Its totient is φ = 800608.

The previous prime is 1601219. The next prime is 1601227. The reversal of 1601224 is 4221061.

It can be written as a sum of positive squares in only one way, i.e., 1368900 + 232324 = 1170^2 + 482^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 1601198 and 1601207.

It is not an unprimeable number, because it can be changed into a prime (1601227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100069 + ... + 100084.

2^1601224 is an apocalyptic number.

It is an amenable number.

1601224 is a deficient number, since it is larger than the sum of its proper divisors (1401086).

1601224 is a wasteful number, since it uses less digits than its factorization.

1601224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200159 (or 200155 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1601224 is about 1265.3948000525. The cubic root of 1601224 is about 116.9905269073.

Adding to 1601224 its reverse (4221061), we get a palindrome (5822285).

The spelling of 1601224 in words is "one million, six hundred one thousand, two hundred twenty-four".