18101070 has 112 divisors (see below), whose sum is σ = 52883712. Its totient is φ = 4432320.

The previous prime is 18101059. The next prime is 18101077. The reversal of 18101070 is 7010181.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18101077) 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 55 ways as a sum of consecutive naturals, for example, 94675 + ... + 94865.

It is an arithmetic number, because the mean of its divisors is an integer number (472176).

Almost surely, 2^18101070 is an apocalyptic number.

18101070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18101070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26441856).

18101070 is an abundant number, since it is smaller than the sum of its proper divisors (34782642).

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

18101070 is a wasteful number, since it uses less digits than its factorization.

18101070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 18.

The square root of 18101070 is about 4254.5352272604. The cubic root of 18101070 is about 262.5637396237.

The spelling of 18101070 in words is "eighteen million, one hundred one thousand, seventy".