18346149 has 8 divisors (see below), whose sum is σ = 27179520. Its totient is φ = 12230748.

The previous prime is 18346129. The next prime is 18346169. The reversal of 18346149 is 94164381.

18346149 is a `hidden beast` number, since 1 + 8 + 34 + 614 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (18346129) and next prime (18346169).

It is not a de Polignac number, because 18346149 - 2⁷ = 18346021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18346129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339717 + ... + 339770.

It is an arithmetic number, because the mean of its divisors is an integer number (3397440).

Almost surely, 2^18346149 is an apocalyptic number.

It is an amenable number.

18346149 is a deficient number, since it is larger than the sum of its proper divisors (8833371).

18346149 is an equidigital number, since it uses as much as digits as its factorization.

18346149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679496 (or 679490 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 18346149 is about 4283.2404788898. The cubic root of 18346149 is about 263.7434232392.

The spelling of 18346149 in words is "eighteen million, three hundred forty-six thousand, one hundred forty-nine".