2147841 has 6 divisors (see below), whose sum is σ = 3102450. Its totient is φ = 1431888.

The previous prime is 2147839. The next prime is 2147843. The reversal of 2147841 is 1487412.

It is an interprime number because it is at equal distance from previous prime (2147839) and next prime (2147843).

It can be written as a sum of positive squares in only one way, i.e., 1299600 + 848241 = 1140^2 + 921^2 .

It is not a de Polignac number, because 2147841 - 2¹ = 2147839 is a prime.

It is a super-2 number, since 2×2147841² = 9226441922562, which contains 22 as substring.

2147841 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2147843) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 119316 + ... + 119333.

It is an arithmetic number, because the mean of its divisors is an integer number (517075).

2^2147841 is an apocalyptic number.

It is an amenable number.

2147841 is a deficient number, since it is larger than the sum of its proper divisors (954609).

2147841 is a wasteful number, since it uses less digits than its factorization.

2147841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238655 (or 238652 counting only the distinct ones).

The product of its digits is 1792, while the sum is 27.

The square root of 2147841 is about 1465.5514320555. The cubic root of 2147841 is about 129.0230714098.

The spelling of 2147841 in words is "two million, one hundred forty-seven thousand, eight hundred forty-one".