545461 has 8 divisors (see below), whose sum is σ = 645120. Its totient is φ = 451248.

The previous prime is 545449. The next prime is 545473. The reversal of 545461 is 164545.

It is an interprime number because it is at equal distance from previous prime (545449) and next prime (545473).

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

It is not a de Polignac number, because 545461 - 2⁵ = 545429 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545161) 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, 1141 + ... + 1546.

It is an arithmetic number, because the mean of its divisors is an integer number (80640).

2⁵⁴⁵⁴⁶¹ is an apocalyptic number.

It is an amenable number.

545461 is a deficient number, since it is larger than the sum of its proper divisors (99659).

545461 is a wasteful number, since it uses less digits than its factorization.

545461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2723.

The product of its digits is 2400, while the sum is 25.

The square root of 545461 is about 738.5533156110. The cubic root of 545461 is about 81.7061163470.

The spelling of 545461 in words is "five hundred forty-five thousand, four hundred sixty-one".