18154148 has 6 divisors (see below), whose sum is σ = 31769766. Its totient is φ = 9077072.

The previous prime is 18154117. The next prime is 18154183. The reversal of 18154148 is 84145181.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11142244 + 7011904 = 3338^2 + 2648^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2269265 + ... + 2269272.

It is an arithmetic number, because the mean of its divisors is an integer number (5294961).

Almost surely, 2^18154148 is an apocalyptic number.

It is an amenable number.

18154148 is a deficient number, since it is larger than the sum of its proper divisors (13615618).

18154148 is a wasteful number, since it uses less digits than its factorization.

18154148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4538541 (or 4538539 counting only the distinct ones).

The product of its digits is 5120, while the sum is 32.

The square root of 18154148 is about 4260.7684752871. The cubic root of 18154148 is about 262.8201288574.

The spelling of 18154148 in words is "eighteen million, one hundred fifty-four thousand, one hundred forty-eight".