1362221 has 8 divisors (see below), whose sum is σ = 1624704. Its totient is φ = 1116720.

The previous prime is 1362211. The next prime is 1362223. The reversal of 1362221 is 1222631.

1362221 = T₄₁ + T₄₂ + ... + T₂₀₁.

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

It is a cyclic number.

It is not a de Polignac number, because 1362221 - 2¹⁰ = 1361197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1362221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1362223) 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, 4070 + ... + 4391.

It is an arithmetic number, because the mean of its divisors is an integer number (203088).

2^1362221 is an apocalyptic number.

It is an amenable number.

1362221 is a deficient number, since it is larger than the sum of its proper divisors (262483).

1362221 is an equidigital number, since it uses as much as digits as its factorization.

1362221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8491.

The product of its digits is 144, while the sum is 17.

The square root of 1362221 is about 1167.1422364048. The cubic root of 1362221 is about 110.8534440049.

Adding to 1362221 its reverse (1222631), we get a palindrome (2584852).

The spelling of 1362221 in words is "one million, three hundred sixty-two thousand, two hundred twenty-one".