18013354 has 4 divisors (see below), whose sum is σ = 27020034. Its totient is φ = 9006676.

The previous prime is 18013313. The next prime is 18013357. The reversal of 18013354 is 45331081.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45331081 = 157 ⋅288733.

It can be written as a sum of positive squares in only one way, i.e., 9162729 + 8850625 = 3027^2 + 2975^2 .

It is not an unprimeable number, because it can be changed into a prime (18013357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4503337 + ... + 4503340.

Almost surely, 2^18013354 is an apocalyptic number.

18013354 is a deficient number, since it is larger than the sum of its proper divisors (9006680).

18013354 is an equidigital number, since it uses as much as digits as its factorization.

18013354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9006679.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 18013354 is about 4244.2141793270. The cubic root of 18013354 is about 262.1389333643.

The spelling of 18013354 in words is "eighteen million, thirteen thousand, three hundred fifty-four".