18734154 has 16 divisors (see below), whose sum is σ = 38340192. Its totient is φ = 6099408.

The previous prime is 18734147. The next prime is 18734161. The reversal of 18734154 is 45143781.

It is an interprime number because it is at equal distance from previous prime (18734147) and next prime (18734161).

It is an unprimeable number.

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, 36049 + ... + 36564.

It is an arithmetic number, because the mean of its divisors is an integer number (2396262).

Almost surely, 2^18734154 is an apocalyptic number.

18734154 is an abundant number, since it is smaller than the sum of its proper divisors (19606038).

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

18734154 is a wasteful number, since it uses less digits than its factorization.

18734154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72661.

The product of its digits is 13440, while the sum is 33.

The square root of 18734154 is about 4328.2968936985. The cubic root of 18734154 is about 265.5897817021.

The spelling of 18734154 in words is "eighteen million, seven hundred thirty-four thousand, one hundred fifty-four".