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561235 = 5112247
BaseRepresentation
bin10001001000001010011
31001111212111
42021001103
5120424420
620010151
74525153
oct2110123
91044774
10561235
11353734
12230957
131685bc
14108763
15b145a
hex89053

561235 has 4 divisors (see below), whose sum is σ = 673488. Its totient is φ = 448984.

The previous prime is 561229. The next prime is 561251. The reversal of 561235 is 532165.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 532165 = 5106433.

It is a cyclic number.

It is not a de Polignac number, because 561235 - 213 = 553043 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

561235 is a lucky number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56119 + ... + 56128.

It is an arithmetic number, because the mean of its divisors is an integer number (168372).

2561235 is an apocalyptic number.

561235 is a deficient number, since it is larger than the sum of its proper divisors (112253).

561235 is a wasteful number, since it uses less digits than its factorization.

561235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112252.

The product of its digits is 900, while the sum is 22.

The square root of 561235 is about 749.1561919920. The cubic root of 561235 is about 82.4862542143.

The spelling of 561235 in words is "five hundred sixty-one thousand, two hundred thirty-five".

Divisors: 1 5 112247 561235