181000363 has 16 divisors (see below), whose sum is σ = 194374656. Its totient is φ = 168125760.

The previous prime is 181000357. The next prime is 181000381. The reversal of 181000363 is 363000181.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-181000363 is a prime.

It is a super-2 number, since 2×181000363² = 65522262812263538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (181000163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 345820 + ... + 346342.

It is an arithmetic number, because the mean of its divisors is an integer number (12148416).

Almost surely, 2^181000363 is an apocalyptic number.

181000363 is a deficient number, since it is larger than the sum of its proper divisors (13374293).

181000363 is a wasteful number, since it uses less digits than its factorization.

181000363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 181000363 is about 13453.6375378557. The cubic root of 181000363 is about 565.6656607340.

The spelling of 181000363 in words is "one hundred eighty-one million, three hundred sixty-three", and thus it is an aban number.