181054 has 4 divisors (see below), whose sum is σ = 271584. Its totient is φ = 90526.

The previous prime is 181039. The next prime is 181061. The reversal of 181054 is 450181.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 450181 = 547 ⋅823.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

181054 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45262 + ... + 45265.

It is an arithmetic number, because the mean of its divisors is an integer number (67896).

2¹⁸¹⁰⁵⁴ is an apocalyptic number.

181054 is a deficient number, since it is larger than the sum of its proper divisors (90530).

181054 is an equidigital number, since it uses as much as digits as its factorization.

181054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90529.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 181054 is about 425.5044065577. The cubic root of 181054 is about 56.5721530995.

The spelling of 181054 in words is "one hundred eighty-one thousand, fifty-four".