561454 has 12 divisors (see below), whose sum is σ = 868392. Its totient is φ = 272240.

The previous prime is 561439. The next prime is 561461. The reversal of 561454 is 454165.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

561454 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3279 + ... + 3445.

It is an arithmetic number, because the mean of its divisors is an integer number (72366).

2⁵⁶¹⁴⁵⁴ is an apocalyptic number.

561454 is a deficient number, since it is larger than the sum of its proper divisors (306938).

561454 is a wasteful number, since it uses less digits than its factorization.

561454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251 (or 210 counting only the distinct ones).

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

The square root of 561454 is about 749.3023421824. The cubic root of 561454 is about 82.4969818302.

The spelling of 561454 in words is "five hundred sixty-one thousand, four hundred fifty-four".