561541039 has 4 divisors (see below), whose sum is σ = 569233456. Its totient is φ = 553848624.

The previous prime is 561541009. The next prime is 561541069. The reversal of 561541039 is 930145165.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (561541009) and next prime (561541069).

It is a cyclic number.

It is not a de Polignac number, because 561541039 - 2²⁵ = 527986607 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 561540995 and 561541013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561541009) 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, 3846099 + ... + 3846244.

It is an arithmetic number, because the mean of its divisors is an integer number (142308364).

Almost surely, 2^561541039 is an apocalyptic number.

561541039 is a deficient number, since it is larger than the sum of its proper divisors (7692417).

561541039 is an equidigital number, since it uses as much as digits as its factorization.

561541039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7692416.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 561541039 is about 23696.8571544836. The cubic root of 561541039 is about 825.0124462157.

The spelling of 561541039 in words is "five hundred sixty-one million, five hundred forty-one thousand, thirty-nine".