1220253 has 8 divisors (see below), whose sum is σ = 1679616. Its totient is φ = 787200.

The previous prime is 1220251. The next prime is 1220257. The reversal of 1220253 is 3520221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1220253 - 2¹ = 1220251 is a prime.

It is a Smith number, since the sum of its digits (15) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6468 + ... + 6653.

It is an arithmetic number, because the mean of its divisors is an integer number (209952).

2^1220253 is an apocalyptic number.

It is an amenable number.

1220253 is a deficient number, since it is larger than the sum of its proper divisors (459363).

1220253 is a wasteful number, since it uses less digits than its factorization.

1220253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13155.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 1220253 is about 1104.6506235005. The cubic root of 1220253 is about 106.8603587891.

Adding to 1220253 its reverse (3520221), we get a palindrome (4740474).

Subtracting 1220253 from its reverse (3520221), we obtain a cube (2299968 = 132³).

The spelling of 1220253 in words is "one million, two hundred twenty thousand, two hundred fifty-three".