146081 has 8 divisors (see below), whose sum is σ = 166824. Its totient is φ = 126720.

The previous prime is 146077. The next prime is 146093. The reversal of 146081 is 180641.

It can be written as a sum of positive squares in 4 ways, for example, as 33856 + 112225 = 184^2 + 335^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 146081 - 2² = 146077 is a prime.

It is a super-2 number, since 2×146081² = 42679317122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110 + ... + 551.

It is an arithmetic number, because the mean of its divisors is an integer number (20853).

2¹⁴⁶⁰⁸¹ is an apocalyptic number.

146081 is the 221-st octagonal number.

It is an amenable number.

146081 is a deficient number, since it is larger than the sum of its proper divisors (20743).

146081 is a wasteful number, since it uses less digits than its factorization.

146081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 146081 is about 382.2054421381. The cubic root of 146081 is about 52.6661103041. Note that the first 3 decimals are identical.

The spelling of 146081 in words is "one hundred forty-six thousand, eighty-one".