18270130 has 16 divisors (see below), whose sum is σ = 33018840. Its totient is φ = 7278592.

The previous prime is 18270127. The next prime is 18270139. The reversal of 18270130 is 3107281.

It can be written as a sum of positive squares in 4 ways, for example, as 16329681 + 1940449 = 4041^2 + 1393^2 .

It is not an unprimeable number, because it can be changed into a prime (18270139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 985 + ... + 6124.

Almost surely, 2^18270130 is an apocalyptic number.

18270130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18270130 is a deficient number, since it is larger than the sum of its proper divisors (14748710).

18270130 is a wasteful number, since it uses less digits than its factorization.

18270130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7373.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 18270130 is about 4274.3572616243. The cubic root of 18270130 is about 263.3786370096.

The spelling of 18270130 in words is "eighteen million, two hundred seventy thousand, one hundred thirty".