215641341 has 6 divisors (see below), whose sum is σ = 311481950. Its totient is φ = 143760888.

The previous prime is 215641337. The next prime is 215641357. The reversal of 215641341 is 143146512.

It is a happy number.

215641341 is a `hidden beast` number, since 2 + 15 + 641 + 3 + 4 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 202464441 + 13176900 = 14229^2 + 3630^2 .

It is not a de Polignac number, because 215641341 - 2² = 215641337 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 (215641381) 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, 11980066 + ... + 11980083.

Almost surely, 2^215641341 is an apocalyptic number.

It is an amenable number.

215641341 is a deficient number, since it is larger than the sum of its proper divisors (95840609).

215641341 is a wasteful number, since it uses less digits than its factorization.

215641341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23960155 (or 23960152 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 215641341 is about 14684.7315603657. The cubic root of 215641341 is about 599.6677243555.

Adding to 215641341 its reverse (143146512), we get a palindrome (358787853).

The spelling of 215641341 in words is "two hundred fifteen million, six hundred forty-one thousand, three hundred forty-one".