1224965 has 16 divisors (see below), whose sum is σ = 1735680. Its totient is φ = 812160.

The previous prime is 1224953. The next prime is 1224967. The reversal of 1224965 is 5694221.

1224965 = 638² + 639² + 640².

It is a happy number.

It is not a de Polignac number, because 1224965 - 2⁸ = 1224709 is a prime.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 521 + ... + 1649.

It is an arithmetic number, because the mean of its divisors is an integer number (108480).

2^1224965 is an apocalyptic number.

It is an amenable number.

1224965 is a deficient number, since it is larger than the sum of its proper divisors (510715).

1224965 is a wasteful number, since it uses less digits than its factorization.

1224965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172.

The product of its digits is 4320, while the sum is 29.

The square root of 1224965 is about 1106.7813695577. The cubic root of 1224965 is about 106.9977290111.

The spelling of 1224965 in words is "one million, two hundred twenty-four thousand, nine hundred sixty-five".