219196971 has 24 divisors (see below), whose sum is σ = 363375584. Its totient is φ = 124727040.

The previous prime is 219196961. The next prime is 219196981. The reversal of 219196971 is 179691912.

It is an interprime number because it is at equal distance from previous prime (219196961) and next prime (219196981).

It is not a de Polignac number, because 219196971 - 2⁶ = 219196907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (219196921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7965 + ... + 22401.

Almost surely, 2^219196971 is an apocalyptic number.

219196971 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

219196971 is a deficient number, since it is larger than the sum of its proper divisors (144178613).

219196971 is a wasteful number, since it uses less digits than its factorization.

219196971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14691 (or 14688 counting only the distinct ones).

The product of its digits is 61236, while the sum is 45.

The square root of 219196971 is about 14805.3021245769. The cubic root of 219196971 is about 602.9456730178.

The spelling of 219196971 in words is "two hundred nineteen million, one hundred ninety-six thousand, nine hundred seventy-one".