12495919 has 4 divisors (see below), whose sum is σ = 12543696. Its totient is φ = 12448144.

The previous prime is 12495913. The next prime is 12495941. The reversal of 12495919 is 91959421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91959421 = 1373 ⋅66977.

It is a cyclic number.

It is not a de Polignac number, because 12495919 - 2¹⁵ = 12463151 is a prime.

It is a super-2 number, since 2×12495919² = 312295983309122, 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 (12495913) 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, 23494 + ... + 24019.

It is an arithmetic number, because the mean of its divisors is an integer number (3135924).

Almost surely, 2^12495919 is an apocalyptic number.

12495919 is a deficient number, since it is larger than the sum of its proper divisors (47777).

12495919 is an equidigital number, since it uses as much as digits as its factorization.

12495919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47776.

The product of its digits is 29160, while the sum is 40.

The square root of 12495919 is about 3534.9567182640. The cubic root of 12495919 is about 232.0541824995.

The spelling of 12495919 in words is "twelve million, four hundred ninety-five thousand, nine hundred nineteen".