181414090 has 96 divisors (see below), whose sum is σ = 407554560. Its totient is φ = 57594240.

The previous prime is 181414081. The next prime is 181414097. The reversal of 181414090 is 90414181.

It is a super-2 number, since 2×181414090² = 65822144101056200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (181414097) 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 47 ways as a sum of consecutive naturals, for example, 298567 + ... + 299173.

It is an arithmetic number, because the mean of its divisors is an integer number (4245360).

Almost surely, 2^181414090 is an apocalyptic number.

181414090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

181414090 is an abundant number, since it is smaller than the sum of its proper divisors (226140470).

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

181414090 is a wasteful number, since it uses less digits than its factorization.

181414090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668 (or 657 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 181414090 is about 13469.0047887734. The cubic root of 181414090 is about 566.0963285044.

Subtracting from 181414090 its reverse (90414181), we obtain a palindrome (90999909).

The spelling of 181414090 in words is "one hundred eighty-one million, four hundred fourteen thousand, ninety".