18148933 has 8 divisors (see below), whose sum is σ = 20841120. Its totient is φ = 15630480.

The previous prime is 18148901. The next prime is 18148939. The reversal of 18148933 is 33984181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18148933 - 2⁵ = 18148901 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18148892 and 18148901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18148939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43210 + ... + 43627.

It is an arithmetic number, because the mean of its divisors is an integer number (2605140).

Almost surely, 2^18148933 is an apocalyptic number.

It is an amenable number.

18148933 is a deficient number, since it is larger than the sum of its proper divisors (2692187).

18148933 is a wasteful number, since it uses less digits than its factorization.

18148933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86867.

The product of its digits is 20736, while the sum is 37.

The square root of 18148933 is about 4260.1564525261. The cubic root of 18148933 is about 262.7949603535.

The spelling of 18148933 in words is "eighteen million, one hundred forty-eight thousand, nine hundred thirty-three".