10631909 has 2 divisors, whose sum is σ = 10631910. Its totient is φ = 10631908.

The previous prime is 10631903. The next prime is 10631921. The reversal of 10631909 is 90913601.

10631909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9302500 + 1329409 = 3050^2 + 1153^2 .

It is a cyclic number.

It is not a de Polignac number, because 10631909 - 2¹⁶ = 10566373 is a prime.

It is a super-2 number, since 2×10631909² = 226074977968562, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10631903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5315954 + 5315955.

It is an arithmetic number, because the mean of its divisors is an integer number (5315955).

Almost surely, 2^10631909 is an apocalyptic number.

It is an amenable number.

10631909 is a deficient number, since it is larger than the sum of its proper divisors (1).

10631909 is an equidigital number, since it uses as much as digits as its factorization.

10631909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 29.

The square root of 10631909 is about 3260.6608225941. The cubic root of 10631909 is about 219.8891245712.

The spelling of 10631909 in words is "ten million, six hundred thirty-one thousand, nine hundred nine".