10183781 has 2 divisors, whose sum is σ = 10183782. Its totient is φ = 10183780.

The previous prime is 10183759. The next prime is 10183783. The reversal of 10183781 is 18738101.

10183781 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5522500 + 4661281 = 2350^2 + 2159^2 .

It is a cyclic number.

It is not a de Polignac number, because 10183781 - 2¹⁴ = 10167397 is a prime.

It is a super-2 number, since 2×10183781² = 207418790911922, which contains 22 as substring.

Together with 10183783, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10183783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5091890 + 5091891.

It is an arithmetic number, because the mean of its divisors is an integer number (5091891).

Almost surely, 2^10183781 is an apocalyptic number.

It is an amenable number.

10183781 is a deficient number, since it is larger than the sum of its proper divisors (1).

10183781 is an equidigital number, since it uses as much as digits as its factorization.

10183781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 29.

The square root of 10183781 is about 3191.2036913992. The cubic root of 10183781 is about 216.7552792046.

The spelling of 10183781 in words is "ten million, one hundred eighty-three thousand, seven hundred eighty-one".