654061 has 4 divisors (see below), whose sum is σ = 661500. Its totient is φ = 646624.

The previous prime is 654053. The next prime is 654067. The reversal of 654061 is 160456.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 281961 + 372100 = 531^2 + 610^2 .

It is a cyclic number.

It is not a de Polignac number, because 654061 - 2³ = 654053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3586 + ... + 3763.

It is an arithmetic number, because the mean of its divisors is an integer number (165375).

2⁶⁵⁴⁰⁶¹ is an apocalyptic number.

It is an amenable number.

654061 is a deficient number, since it is larger than the sum of its proper divisors (7439).

654061 is an equidigital number, since it uses as much as digits as its factorization.

654061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7438.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 654061 is about 808.7403786136. The cubic root of 654061 is about 86.8039359850.

The spelling of 654061 in words is "six hundred fifty-four thousand, sixty-one".