181413492 has 24 divisors (see below), whose sum is σ = 455859936. Its totient is φ = 55819488.

The previous prime is 181413469. The next prime is 181413499. The reversal of 181413492 is 294314181.

It is a happy number.

181413492 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181413499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 581298 + ... + 581609.

It is an arithmetic number, because the mean of its divisors is an integer number (18994164).

Almost surely, 2^181413492 is an apocalyptic number.

181413492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

181413492 is an abundant number, since it is smaller than the sum of its proper divisors (274446444).

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

181413492 is a wasteful number, since it uses less digits than its factorization.

181413492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162927 (or 1162925 counting only the distinct ones).

The product of its digits is 6912, while the sum is 33.

The square root of 181413492 is about 13468.9825896391. The cubic root of 181413492 is about 566.0957064910.

The spelling of 181413492 in words is "one hundred eighty-one million, four hundred thirteen thousand, four hundred ninety-two".