291842041 has 4 divisors (see below), whose sum is σ = 292008052. Its totient is φ = 291676032.

The previous prime is 291842039. The next prime is 291842069. The reversal of 291842041 is 140248192.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 175827600 + 116014441 = 13260^2 + 10771^2 .

It is a cyclic number.

It is not a de Polignac number, because 291842041 - 2¹ = 291842039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 291841994 and 291842012.

It is not an unprimeable number, because it can be changed into a prime (291842741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80340 + ... + 83893.

It is an arithmetic number, because the mean of its divisors is an integer number (73002013).

Almost surely, 2^291842041 is an apocalyptic number.

It is an amenable number.

291842041 is a deficient number, since it is larger than the sum of its proper divisors (166011).

291842041 is a wasteful number, since it uses less digits than its factorization.

291842041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166010.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 291842041 is about 17083.3849397595. The cubic root of 291842041 is about 663.3090936377.

The spelling of 291842041 in words is "two hundred ninety-one million, eight hundred forty-two thousand, forty-one".