1162121 has 4 divisors (see below), whose sum is σ = 1212672. Its totient is φ = 1111572.

The previous prime is 1162099. The next prime is 1162129. The reversal of 1162121 is 1212611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1162121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1162096 and 1162105.

It is not an unprimeable number, because it can be changed into a prime (1162129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25241 + ... + 25286.

It is an arithmetic number, because the mean of its divisors is an integer number (303168).

2^1162121 is an apocalyptic number.

It is an amenable number.

1162121 is a deficient number, since it is larger than the sum of its proper divisors (50551).

1162121 is an equidigital number, since it uses as much as digits as its factorization.

1162121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50550.

The product of its digits is 24, while the sum is 14.

The square root of 1162121 is about 1078.0171612734. The cubic root of 1162121 is about 105.1357578831.

Adding to 1162121 its reverse (1212611), we get a palindrome (2374732).

The spelling of 1162121 in words is "one million, one hundred sixty-two thousand, one hundred twenty-one".