1162621 has 2 divisors, whose sum is σ = 1162622. Its totient is φ = 1162620.

The previous prime is 1162619. The next prime is 1162631. The reversal of 1162621 is 1262611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 881721 + 280900 = 939^2 + 530^2 .

It is a cyclic number.

It is not a de Polignac number, because 1162621 - 2¹ = 1162619 is a prime.

Together with 1162619, it forms a pair of twin primes.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1162631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 581310 + 581311.

It is an arithmetic number, because the mean of its divisors is an integer number (581311).

2^1162621 is an apocalyptic number.

It is an amenable number.

1162621 is a deficient number, since it is larger than the sum of its proper divisors (1).

1162621 is an equidigital number, since it uses as much as digits as its factorization.

1162621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 19.

The square root of 1162621 is about 1078.2490435887. The cubic root of 1162621 is about 105.1508338639.

The spelling of 1162621 in words is "one million, one hundred sixty-two thousand, six hundred twenty-one".