1371224 has 8 divisors (see below), whose sum is σ = 2571060. Its totient is φ = 685608.

The previous prime is 1371217. The next prime is 1371229. The reversal of 1371224 is 4221731.

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 = 1371196 and 1371205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1371229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85694 + ... + 85709.

2^1371224 is an apocalyptic number.

It is an amenable number.

1371224 is a deficient number, since it is larger than the sum of its proper divisors (1199836).

1371224 is a wasteful number, since it uses less digits than its factorization.

1371224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171409 (or 171405 counting only the distinct ones).

The product of its digits is 336, while the sum is 20.

The square root of 1371224 is about 1170.9927412243. The cubic root of 1371224 is about 111.0971203125.

Adding to 1371224 its reverse (4221731), we get a palindrome (5592955).

The spelling of 1371224 in words is "one million, three hundred seventy-one thousand, two hundred twenty-four".