561485146 has 8 divisors (see below), whose sum is σ = 891770580. Its totient is φ = 264228288.

The previous prime is 561485083. The next prime is 561485173. The reversal of 561485146 is 641584165.

It can be written as a sum of positive squares in 2 ways, for example, as 529506121 + 31979025 = 23011^2 + 5655^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 561485099 and 561485108.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8257101 + ... + 8257168.

Almost surely, 2^561485146 is an apocalyptic number.

561485146 is a deficient number, since it is larger than the sum of its proper divisors (330285434).

561485146 is a wasteful number, since it uses less digits than its factorization.

561485146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16514288.

The product of its digits is 115200, while the sum is 40.

The square root of 561485146 is about 23695.6777915298. The cubic root of 561485146 is about 824.9850727633.

The spelling of 561485146 in words is "five hundred sixty-one million, four hundred eighty-five thousand, one hundred forty-six".