181007132 has 24 divisors (see below), whose sum is σ = 322282800. Its totient is φ = 88939136.

The previous prime is 181007119. The next prime is 181007149. The reversal of 181007132 is 231700181.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 181007098 and 181007107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60119 + ... + 63057.

It is an arithmetic number, because the mean of its divisors is an integer number (13428450).

Almost surely, 2^181007132 is an apocalyptic number.

It is an amenable number.

181007132 is a deficient number, since it is larger than the sum of its proper divisors (141275668).

181007132 is a wasteful number, since it uses less digits than its factorization.

181007132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3205 (or 3203 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 181007132 is about 13453.8891031553. The cubic root of 181007132 is about 565.6727121805.

The spelling of 181007132 in words is "one hundred eighty-one million, seven thousand, one hundred thirty-two".