26161219 has 8 divisors (see below), whose sum is σ = 30929760. Its totient is φ = 21650496.

The previous prime is 26161217. The next prime is 26161231. The reversal of 26161219 is 91216162.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 26161219 - 2¹ = 26161217 is a prime.

It is a super-2 number, since 2×26161219² = 1368818759131922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26161211) 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 7 ways as a sum of consecutive naturals, for example, 64234 + ... + 64639.

It is an arithmetic number, because the mean of its divisors is an integer number (3866220).

Almost surely, 2^26161219 is an apocalyptic number.

26161219 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

26161219 is a deficient number, since it is larger than the sum of its proper divisors (4768541).

26161219 is a wasteful number, since it uses less digits than its factorization.

26161219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128909.

The product of its digits is 1296, while the sum is 28.

The square root of 26161219 is about 5114.8039063096. The cubic root of 26161219 is about 296.8606669202.

The spelling of 26161219 in words is "twenty-six million, one hundred sixty-one thousand, two hundred nineteen".