16122419 has 4 divisors (see below), whose sum is σ = 16132200. Its totient is φ = 16112640.

The previous prime is 16122413. The next prime is 16122427. The reversal of 16122419 is 91422161.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16122419 is a prime.

It is a super-2 number, since 2×16122419² = 519864788823122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16122413) 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, 1742 + ... + 5939.

It is an arithmetic number, because the mean of its divisors is an integer number (4033050).

Almost surely, 2^16122419 is an apocalyptic number.

16122419 is a deficient number, since it is larger than the sum of its proper divisors (9781).

16122419 is an equidigital number, since it uses as much as digits as its factorization.

16122419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9780.

The product of its digits is 864, while the sum is 26.

The square root of 16122419 is about 4015.2732161087. The cubic root of 16122419 is about 252.6252373538.

The spelling of 16122419 in words is "sixteen million, one hundred twenty-two thousand, four hundred nineteen".