181063936 has 45 divisors (see below), whose sum is σ = 374328451. Its totient is φ = 87410176.

The previous prime is 181063879. The next prime is 181063973. The reversal of 181063936 is 639360181.

The square root of 181063936 is 13456.

It is a perfect power (a square, a biquadrate), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 430336 + 180633600 = 656^2 + 13440^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 181063895 and 181063904.

It is an unprimeable number.

It is a polite number, since it can be written in 4 ways as a sum of consecutive naturals, for example, 6243570 + ... + 6243598.

Almost surely, 2^181063936 is an apocalyptic number.

181063936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

181063936 is the 13456-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 181063936

181063936 is an abundant number, since it is smaller than the sum of its proper divisors (193264515).

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

181063936 is an frugal number, since it uses more digits than its factorization.

181063936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132 (or 31 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The cubic root of 181063936 is about 565.7318794845.

The spelling of 181063936 in words is "one hundred eighty-one million, sixty-three thousand, nine hundred thirty-six".