18016245 has 72 divisors (see below), whose sum is σ = 35627904. Its totient is φ = 8401536.

The previous prime is 18016223. The next prime is 18016249. The reversal of 18016245 is 54261081.

It is not a de Polignac number, because 18016245 - 2¹² = 18012149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18016249) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 174864 + ... + 174966.

It is an arithmetic number, because the mean of its divisors is an integer number (494832).

Almost surely, 2^18016245 is an apocalyptic number.

18016245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18016245 is a deficient number, since it is larger than the sum of its proper divisors (17611659).

18016245 is a wasteful number, since it uses less digits than its factorization.

18016245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 18016245 is about 4244.5547469670. The cubic root of 18016245 is about 262.1529563518.

It can be divided in two parts, 180 and 16245, that multiplied together give a square (2924100 = 1710²).

The spelling of 18016245 in words is "eighteen million, sixteen thousand, two hundred forty-five".