18075128 has 8 divisors (see below), whose sum is σ = 33890880. Its totient is φ = 9037560.

The previous prime is 18075103. The next prime is 18075133. The reversal of 18075128 is 82157081.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 18075094 and 18075103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1129688 + ... + 1129703.

It is an arithmetic number, because the mean of its divisors is an integer number (4236360).

Almost surely, 2^18075128 is an apocalyptic number.

It is an amenable number.

18075128 is a deficient number, since it is larger than the sum of its proper divisors (15815752).

18075128 is a wasteful number, since it uses less digits than its factorization.

18075128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2259397 (or 2259393 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 32.

The square root of 18075128 is about 4251.4853874852. The cubic root of 18075128 is about 262.4382463956.

The spelling of 18075128 in words is "eighteen million, seventy-five thousand, one hundred twenty-eight".