10953781 has 2 divisors, whose sum is σ = 10953782. Its totient is φ = 10953780.

The previous prime is 10953779. The next prime is 10953799. The reversal of 10953781 is 18735901.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10297681 + 656100 = 3209^2 + 810^2 .

It is a cyclic number.

It is not a de Polignac number, because 10953781 - 2¹ = 10953779 is a prime.

It is a super-2 number, since 2×10953781² = 239970636391922, which contains 22 as substring.

Together with 10953779, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10953721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5476890 + 5476891.

It is an arithmetic number, because the mean of its divisors is an integer number (5476891).

Almost surely, 2^10953781 is an apocalyptic number.

It is an amenable number.

10953781 is a deficient number, since it is larger than the sum of its proper divisors (1).

10953781 is an equidigital number, since it uses as much as digits as its factorization.

10953781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 10953781 is about 3309.6496793467. The cubic root of 10953781 is about 222.0860865170.

The spelling of 10953781 in words is "ten million, nine hundred fifty-three thousand, seven hundred eighty-one".