18101049 has 8 divisors (see below), whose sum is σ = 24723552. Its totient is φ = 11772960.

The previous prime is 18101047. The next prime is 18101051. The reversal of 18101049 is 94010181.

It is an interprime number because it is at equal distance from previous prime (18101047) and next prime (18101051).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18101049 - 2¹ = 18101047 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18101047) 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, 73459 + ... + 73704.

It is an arithmetic number, because the mean of its divisors is an integer number (3090444).

Almost surely, 2^18101049 is an apocalyptic number.

It is an amenable number.

18101049 is a deficient number, since it is larger than the sum of its proper divisors (6622503).

18101049 is a wasteful number, since it uses less digits than its factorization.

18101049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147207.

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 18101049 is about 4254.5327593051. The cubic root of 18101049 is about 262.5636380857.

The spelling of 18101049 in words is "eighteen million, one hundred one thousand, forty-nine".