12910019 has 4 divisors (see below), whose sum is σ = 13210296. Its totient is φ = 12609744.

The previous prime is 12910013. The next prime is 12910031. The reversal of 12910019 is 91001921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91001921 = 1583 ⋅57487.

It is a cyclic number.

It is not a de Polignac number, because 12910019 - 2¹² = 12905923 is a prime.

It is a super-2 number, since 2×12910019² = 333337181160722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12909976 and 12910003.

It is not an unprimeable number, because it can be changed into a prime (12910013) 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, 150074 + ... + 150159.

It is an arithmetic number, because the mean of its divisors is an integer number (3302574).

Almost surely, 2^12910019 is an apocalyptic number.

12910019 is a deficient number, since it is larger than the sum of its proper divisors (300277).

12910019 is an equidigital number, since it uses as much as digits as its factorization.

12910019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300276.

The product of its (nonzero) digits is 162, while the sum is 23.

The square root of 12910019 is about 3593.0514886375. The cubic root of 12910019 is about 234.5897111303.

The spelling of 12910019 in words is "twelve million, nine hundred ten thousand, nineteen".