9505381 has 2 divisors, whose sum is σ = 9505382. Its totient is φ = 9505380.

The previous prime is 9505373. The next prime is 9505393. The reversal of 9505381 is 1835059.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7474756 + 2030625 = 2734^2 + 1425^2 .

It is a cyclic number.

It is not a de Polignac number, because 9505381 - 2³ = 9505373 is a prime.

It is a super-2 number, since 2×9505381² = 180704535910322, which contains 22 as substring.

It is a Chen prime.

9505381 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9505361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4752690 + 4752691.

It is an arithmetic number, because the mean of its divisors is an integer number (4752691).

Almost surely, 2^9505381 is an apocalyptic number.

It is an amenable number.

9505381 is a deficient number, since it is larger than the sum of its proper divisors (1).

9505381 is an equidigital number, since it uses as much as digits as its factorization.

9505381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 9505381 is about 3083.0797913774. The cubic root of 9505381 is about 211.8311593261.

The spelling of 9505381 in words is "nine million, five hundred five thousand, three hundred eighty-one".