1194021 has 10 divisors (see below), whose sum is σ = 1783782. Its totient is φ = 795960.

The previous prime is 1194019. The next prime is 1194023. The reversal of 1194021 is 1204911.

It is an interprime number because it is at equal distance from previous prime (1194019) and next prime (1194023).

It can be written as a sum of positive squares in only one way, i.e., 1185921 + 8100 = 1089^2 + 90^2 .

It is not a de Polignac number, because 1194021 - 2¹ = 1194019 is a prime.

It is a super-2 number, since 2×1194021² = 2851372296882, which contains 22 as substring.

1194021 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1193985 and 1194003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1194023) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 7290 + ... + 7451.

2^1194021 is an apocalyptic number.

It is an amenable number.

1194021 is a deficient number, since it is larger than the sum of its proper divisors (589761).

1194021 is an equidigital number, since it uses as much as digits as its factorization.

1194021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14753 (or 14744 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 1194021 is about 1092.7126795274. The cubic root of 1194021 is about 106.0890731065.

Adding to 1194021 its reverse (1204911), we get a palindrome (2398932).

The spelling of 1194021 in words is "one million, one hundred ninety-four thousand, twenty-one".