1162213 has 12 divisors (see below), whose sum is σ = 1316140. Its totient is φ = 1026168.

The previous prime is 1162193. The next prime is 1162219. The reversal of 1162213 is 3122611.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 42849 + 1119364 = 207^2 + 1058^2 .

It is not a de Polignac number, because 1162213 - 2¹⁷ = 1031141 is a prime.

It is a Duffinian number.

Its product of digits (72) is a multiple of the sum of its prime divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1162219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50520 + ... + 50542.

2^1162213 is an apocalyptic number.

1162213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1162213 is a deficient number, since it is larger than the sum of its proper divisors (153927).

1162213 is an frugal number, since it uses more digits than its factorization.

1162213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85 (or 36 counting only the distinct ones).

The product of its digits is 72, while the sum is 16.

The square root of 1162213 is about 1078.0598313637. The cubic root of 1162213 is about 105.1385321882.

Adding to 1162213 its reverse (3122611), we get a palindrome (4284824).

The spelling of 1162213 in words is "one million, one hundred sixty-two thousand, two hundred thirteen".