10121719 has 4 divisors (see below), whose sum is σ = 10189800. Its totient is φ = 10053640.

The previous prime is 10121693. The next prime is 10121723. The reversal of 10121719 is 91712101.

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 10121719 - 2⁵ = 10121687 is a prime.

It is a super-2 number, since 2×10121719² = 204898391029922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10121719.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33817 + ... + 34114.

It is an arithmetic number, because the mean of its divisors is an integer number (2547450).

Almost surely, 2^10121719 is an apocalyptic number.

10121719 is a deficient number, since it is larger than the sum of its proper divisors (68081).

10121719 is an equidigital number, since it uses as much as digits as its factorization.

10121719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68080.

The product of its (nonzero) digits is 126, while the sum is 22.

The square root of 10121719 is about 3181.4649141551. The cubic root of 10121719 is about 216.3140650174.

The spelling of 10121719 in words is "ten million, one hundred twenty-one thousand, seven hundred nineteen".