10645919 has 2 divisors, whose sum is σ = 10645920. Its totient is φ = 10645918.

The previous prime is 10645891. The next prime is 10645931. The reversal of 10645919 is 91954601.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10645919 is a prime.

It is a super-2 number, since 2×10645919² = 226671182709122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10645949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5322959 + 5322960.

It is an arithmetic number, because the mean of its divisors is an integer number (5322960).

Almost surely, 2^10645919 is an apocalyptic number.

10645919 is a deficient number, since it is larger than the sum of its proper divisors (1).

10645919 is an equidigital number, since it uses as much as digits as its factorization.

10645919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 10645919 is about 3262.8084528516. The cubic root of 10645919 is about 219.9856671103.

The spelling of 10645919 in words is "ten million, six hundred forty-five thousand, nine hundred nineteen".