128450119 has 6 divisors (see below), whose sum is σ = 149421624. Its totient is φ = 110100060.

The previous prime is 128450117. The next prime is 128450123. The reversal of 128450119 is 911054821.

It is a happy number.

It is not a de Polignac number, because 128450119 - 2¹ = 128450117 is a prime.

It is a super-2 number, since 2×128450119² = 32998866142228322, 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 (128450117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1310667 + ... + 1310764.

It is an arithmetic number, because the mean of its divisors is an integer number (24903604).

Almost surely, 2^128450119 is an apocalyptic number.

128450119 is a deficient number, since it is larger than the sum of its proper divisors (20971505).

128450119 is an equidigital number, since it uses as much as digits as its factorization.

128450119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2621445 (or 2621438 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 128450119 is about 11333.5836786076. The cubic root of 128450119 is about 504.5584730161.

The spelling of 128450119 in words is "one hundred twenty-eight million, four hundred fifty thousand, one hundred nineteen".