561244546 has 8 divisors (see below), whose sum is σ = 842700924. Its totient is φ = 280344240.

The previous prime is 561244543. The next prime is 561244549. The reversal of 561244546 is 645442165.

It is an interprime number because it is at equal distance from previous prime (561244543) and next prime (561244549).

It can be written as a sum of positive squares in 2 ways, for example, as 359292025 + 201952521 = 18955^2 + 14211^2 .

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

It is a super-2 number, since 2×561244546² = 629990880829492232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (561244543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136485 + ... + 140536.

Almost surely, 2^561244546 is an apocalyptic number.

561244546 is a deficient number, since it is larger than the sum of its proper divisors (281456378).

561244546 is a wasteful number, since it uses less digits than its factorization.

561244546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278036.

The product of its digits is 115200, while the sum is 37.

The square root of 561244546 is about 23690.6003722996. The cubic root of 561244546 is about 824.8672187896.

The spelling of 561244546 in words is "five hundred sixty-one million, two hundred forty-four thousand, five hundred forty-six".