561459 has 16 divisors (see below), whose sum is σ = 807840. Its totient is φ = 345600.

The previous prime is 561439. The next prime is 561461. The reversal of 561459 is 954165.

561459 = T₄₂ + T₄₃ + ... + T₁₅₀.

It is not a de Polignac number, because 561459 - 2¹⁵ = 528691 is a prime.

561459 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5097 + ... + 5205.

It is an arithmetic number, because the mean of its divisors is an integer number (50490).

2⁵⁶¹⁴⁵⁹ is an apocalyptic number.

561459 is a deficient number, since it is larger than the sum of its proper divisors (246381).

561459 is a wasteful number, since it uses less digits than its factorization.

561459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230.

The product of its digits is 5400, while the sum is 30.

The square root of 561459 is about 749.3056786119. The cubic root of 561459 is about 82.4972267204.

The spelling of 561459 in words is "five hundred sixty-one thousand, four hundred fifty-nine".