1120621 has 8 divisors (see below), whose sum is σ = 1160064. Its totient is φ = 1081920.

The previous prime is 1120607. The next prime is 1120627. The reversal of 1120621 is 1260211.

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 1120621 - 2⁹ = 1120109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120627) 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, 5206 + ... + 5416.

It is an arithmetic number, because the mean of its divisors is an integer number (145008).

2^1120621 is an apocalyptic number.

It is an amenable number.

1120621 is a deficient number, since it is larger than the sum of its proper divisors (39443).

1120621 is a wasteful number, since it uses less digits than its factorization.

1120621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1120621 is about 1058.5938786900. The cubic root of 1120621 is about 103.8690721743.

Adding to 1120621 its reverse (1260211), we get a palindrome (2380832).

The spelling of 1120621 in words is "one million, one hundred twenty thousand, six hundred twenty-one".