181413000 has 128 divisors (see below), whose sum is σ = 628992000. Its totient is φ = 48369600.

The previous prime is 181412999. The next prime is 181413049. The reversal of 181413000 is 314181.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23641 + ... + 30359.

It is an arithmetic number, because the mean of its divisors is an integer number (4914000).

Almost surely, 2^181413000 is an apocalyptic number.

181413000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 181413000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314496000).

181413000 is an abundant number, since it is smaller than the sum of its proper divisors (447579000).

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

181413000 is a wasteful number, since it uses less digits than its factorization.

181413000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6749 (or 6729 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 181413000 is about 13468.9643254409. The cubic root of 181413000 is about 566.0951947331.

Adding to 181413000 its reverse (314181), we get a palindrome (181727181).

The spelling of 181413000 in words is "one hundred eighty-one million, four hundred thirteen thousand".