18112037 has 8 divisors (see below), whose sum is σ = 19194840. Its totient is φ = 17059840.

The previous prime is 18112019. The next prime is 18112121. The reversal of 18112037 is 73021181.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 83521 + 18028516 = 289^2 + 4246^2 .

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 18112037 - 2¹⁰ = 18111013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18112007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6428 + ... + 8805.

It is an arithmetic number, because the mean of its divisors is an integer number (2399355).

Almost surely, 2^18112037 is an apocalyptic number.

It is an amenable number.

18112037 is a deficient number, since it is larger than the sum of its proper divisors (1082803).

18112037 is a wasteful number, since it uses less digits than its factorization.

18112037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15303.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 18112037 is about 4255.8238920331. The cubic root of 18112037 is about 262.6167559220.

The spelling of 18112037 in words is "eighteen million, one hundred twelve thousand, thirty-seven".