801143381 has 2 divisors, whose sum is σ = 801143382. Its totient is φ = 801143380.

The previous prime is 801143353. The next prime is 801143401. The reversal of 801143381 is 183341108.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 439573156 + 361570225 = 20966^2 + 19015^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-801143381 is a prime.

It is a super-2 number, since 2×801143381² = 1283661433840222322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (801143081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400571690 + 400571691.

It is an arithmetic number, because the mean of its divisors is an integer number (400571691).

Almost surely, 2^801143381 is an apocalyptic number.

It is an amenable number.

801143381 is a deficient number, since it is larger than the sum of its proper divisors (1).

801143381 is an equidigital number, since it uses as much as digits as its factorization.

801143381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 801143381 is about 28304.4763420912. The cubic root of 801143381 is about 928.7598149006.

Adding to 801143381 its reverse (183341108), we get a palindrome (984484489).

The spelling of 801143381 in words is "eight hundred one million, one hundred forty-three thousand, three hundred eighty-one".