1805117341 has 4 divisors (see below), whose sum is σ = 1911300732. Its totient is φ = 1698933952.

The previous prime is 1805117309. The next prime is 1805117357. The reversal of 1805117341 is 1437115081.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1437115081 = 31 ⋅46358551.

It can be written as a sum of positive squares in 2 ways, for example, as 1517102500 + 288014841 = 38950^2 + 16971^2 .

It is a cyclic number.

It is not a de Polignac number, because 1805117341 - 2⁵ = 1805117309 is a prime.

It is a super-2 number, since 2×1805117341² = 6516897229557820562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1805117641) 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, 53091670 + ... + 53091703.

It is an arithmetic number, because the mean of its divisors is an integer number (477825183).

Almost surely, 2^1805117341 is an apocalyptic number.

It is an amenable number.

1805117341 is a deficient number, since it is larger than the sum of its proper divisors (106183391).

1805117341 is a wasteful number, since it uses less digits than its factorization.

1805117341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106183390.

The product of its (nonzero) digits is 3360, while the sum is 31.

The square root of 1805117341 is about 42486.6725103296. The cubic root of 1805117341 is about 1217.5920751383.

The spelling of 1805117341 in words is "one billion, eight hundred five million, one hundred seventeen thousand, three hundred forty-one".