215294841 has 16 divisors (see below), whose sum is σ = 322896320. Its totient is φ = 143528436.

The previous prime is 215294839. The next prime is 215294843. The reversal of 215294841 is 148492512.

It is an interprime number because it is at equal distance from previous prime (215294839) and next prime (215294843).

It is not a de Polignac number, because 215294841 - 2¹ = 215294839 is a prime.

It is a super-2 number, since 2×215294841² = 92703737122430562, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 215294796 and 215294805.

It is not an unprimeable number, because it can be changed into a prime (215294843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47035 + ... + 51408.

It is an arithmetic number, because the mean of its divisors is an integer number (20181020).

Almost surely, 2^215294841 is an apocalyptic number.

It is an amenable number.

215294841 is a deficient number, since it is larger than the sum of its proper divisors (107601479).

215294841 is an frugal number, since it uses more digits than its factorization.

215294841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98464 (or 98446 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 215294841 is about 14672.9288487336. The cubic root of 215294841 is about 599.3463631901.

The spelling of 215294841 in words is "two hundred fifteen million, two hundred ninety-four thousand, eight hundred forty-one".