219422139 has 8 divisors (see below), whose sum is σ = 305283072. Its totient is φ = 139921320.

The previous prime is 219422131. The next prime is 219422141. The reversal of 219422139 is 931224912.

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

It is not a de Polignac number, because 219422139 - 2³ = 219422131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (219422131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1589947 + ... + 1590084.

It is an arithmetic number, because the mean of its divisors is an integer number (38160384).

Almost surely, 2^219422139 is an apocalyptic number.

219422139 is a deficient number, since it is larger than the sum of its proper divisors (85860933).

219422139 is a wasteful number, since it uses less digits than its factorization.

219422139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3180057.

The product of its digits is 7776, while the sum is 33.

The square root of 219422139 is about 14812.9044754903. The cubic root of 219422139 is about 603.1520590972.

The spelling of 219422139 in words is "two hundred nineteen million, four hundred twenty-two thousand, one hundred thirty-nine".