181026969 has 8 divisors (see below), whose sum is σ = 242703552. Its totient is φ = 120017520.

The previous prime is 181026919. The next prime is 181027009. The reversal of 181026969 is 969620181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 181026969 - 2¹⁶ = 180961433 is a prime.

It is a super-2 number, since 2×181026969² = 65541527010653922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 181026969.

It is not an unprimeable number, because it can be changed into a prime (181026919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166149 + ... + 167234.

It is an arithmetic number, because the mean of its divisors is an integer number (30337944).

Almost surely, 2^181026969 is an apocalyptic number.

It is an amenable number.

181026969 is a deficient number, since it is larger than the sum of its proper divisors (61676583).

181026969 is a wasteful number, since it uses less digits than its factorization.

181026969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333567.

The product of its (nonzero) digits is 46656, while the sum is 42.

The square root of 181026969 is about 13454.6263047325. The cubic root of 181026969 is about 565.6933758961.

The spelling of 181026969 in words is "one hundred eighty-one million, twenty-six thousand, nine hundred sixty-nine".