243154128 has 80 divisors (see below), whose sum is σ = 760129920. Its totient is φ = 65384448.

The previous prime is 243154127. The next prime is 243154151. The reversal of 243154128 is 821451342.

It is a junction number, because it is equal to n+sod(n) for n = 243154095 and 243154104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243154123) 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, 15573 + ... + 26996.

It is an arithmetic number, because the mean of its divisors is an integer number (9501624).

Almost surely, 2^243154128 is an apocalyptic number.

243154128 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

243154128 is an abundant number, since it is smaller than the sum of its proper divisors (516975792).

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

243154128 is a wasteful number, since it uses less digits than its factorization.

243154128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42604 (or 42598 counting only the distinct ones).

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

The square root of 243154128 is about 15593.4001423679. The cubic root of 243154128 is about 624.1570528419.

The spelling of 243154128 in words is "two hundred forty-three million, one hundred fifty-four thousand, one hundred twenty-eight".