10519919 has 4 divisors (see below), whose sum is σ = 10618344. Its totient is φ = 10421496.

The previous prime is 10519913. The next prime is 10519931. The reversal of 10519919 is 91991501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10519919 - 2¹⁶ = 10454383 is a prime.

It is a super-2 number, since 2×10519919² = 221337391533122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10519913) 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 in 3 ways as a sum of consecutive naturals, for example, 49052 + ... + 49265.

It is an arithmetic number, because the mean of its divisors is an integer number (2654586).

Almost surely, 2^10519919 is an apocalyptic number.

10519919 is a deficient number, since it is larger than the sum of its proper divisors (98425).

10519919 is an equidigital number, since it uses as much as digits as its factorization.

10519919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98424.

The product of its (nonzero) digits is 3645, while the sum is 35.

The square root of 10519919 is about 3243.4424613364. The cubic root of 10519919 is about 219.1143387982.

The spelling of 10519919 in words is "ten million, five hundred nineteen thousand, nine hundred nineteen".