128422119 has 16 divisors (see below), whose sum is σ = 202004480. Its totient is φ = 71016480.

The previous prime is 128422103. The next prime is 128422139. The reversal of 128422119 is 911224821.

It is a happy number.

It is not a de Polignac number, because 128422119 - 2⁴ = 128422103 is a prime.

It is a super-2 number, since 2×128422119² = 32984481296900322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128422139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97984 + ... + 99285.

It is an arithmetic number, because the mean of its divisors is an integer number (12625280).

Almost surely, 2^128422119 is an apocalyptic number.

128422119 is a deficient number, since it is larger than the sum of its proper divisors (73582361).

128422119 is a wasteful number, since it uses less digits than its factorization.

128422119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197310.

The product of its digits is 2304, while the sum is 30.

The square root of 128422119 is about 11332.3483444518. The cubic root of 128422119 is about 504.5218085531.

The spelling of 128422119 in words is "one hundred twenty-eight million, four hundred twenty-two thousand, one hundred nineteen".