234145128 has 48 divisors (see below), whose sum is σ = 680935680. Its totient is φ = 66898272.

The previous prime is 234145111. The next prime is 234145133. The reversal of 234145128 is 821541432.

It is a super-2 number, since 2×234145128² = 109647881932272768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 234145095 and 234145104.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98376 + ... + 100727.

It is an arithmetic number, because the mean of its divisors is an integer number (14186160).

Almost surely, 2^234145128 is an apocalyptic number.

234145128 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

234145128 is an abundant number, since it is smaller than the sum of its proper divisors (446790552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

234145128 is a wasteful number, since it uses less digits than its factorization.

234145128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199126 (or 199115 counting only the distinct ones).

The product of its digits is 7680, while the sum is 30.

The square root of 234145128 is about 15301.8014625730. The cubic root of 234145128 is about 616.3513835450.

The spelling of 234145128 in words is "two hundred thirty-four million, one hundred forty-five thousand, one hundred twenty-eight".