88231219 has 2 divisors, whose sum is σ = 88231220. Its totient is φ = 88231218.

The previous prime is 88231217. The next prime is 88231259. The reversal of 88231219 is 91213288.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 88231219 - 2¹ = 88231217 is a prime.

It is a super-2 number, since 2×88231219² = 15569496012451922, which contains 22 as substring.

Together with 88231217, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (88231217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44115609 + 44115610.

It is an arithmetic number, because the mean of its divisors is an integer number (44115610).

Almost surely, 2^88231219 is an apocalyptic number.

88231219 is a deficient number, since it is larger than the sum of its proper divisors (1).

88231219 is an equidigital number, since it uses as much as digits as its factorization.

88231219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 34.

The square root of 88231219 is about 9393.1474490716. The cubic root of 88231219 is about 445.1852429124.

The spelling of 88231219 in words is "eighty-eight million, two hundred thirty-one thousand, two hundred nineteen".