654081 has 8 divisors (see below), whose sum is σ = 876480. Its totient is φ = 433872.

The previous prime is 654067. The next prime is 654089. The reversal of 654081 is 180456.

654081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 654081 - 2¹⁰ = 653057 is a prime.

It is a super-2 number, since 2×654081² = 855643909122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (654089) 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, 375 + ... + 1203.

It is an arithmetic number, because the mean of its divisors is an integer number (109560).

2⁶⁵⁴⁰⁸¹ is an apocalyptic number.

654081 is the 512-nd centered pentagonal number.

It is an amenable number.

654081 is a deficient number, since it is larger than the sum of its proper divisors (222399).

654081 is a wasteful number, since it uses less digits than its factorization.

654081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 654081 is about 808.7527434266. The cubic root of 654081 is about 86.8048207450.

The spelling of 654081 in words is "six hundred fifty-four thousand, eighty-one".