561131246 has 16 divisors (see below), whose sum is σ = 923547744. Its totient is φ = 254096544.

The previous prime is 561131227. The next prime is 561131281. The reversal of 561131246 is 642131165.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202226 + ... + 204981.

It is an arithmetic number, because the mean of its divisors is an integer number (57721734).

Almost surely, 2^561131246 is an apocalyptic number.

561131246 is a deficient number, since it is larger than the sum of its proper divisors (362416498).

561131246 is a wasteful number, since it uses less digits than its factorization.

561131246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407275.

The product of its digits is 4320, while the sum is 29.

The square root of 561131246 is about 23688.2090078587. The cubic root of 561131246 is about 824.8117089730.

The spelling of 561131246 in words is "five hundred sixty-one million, one hundred thirty-one thousand, two hundred forty-six".