561131035 has 4 divisors (see below), whose sum is σ = 673357248. Its totient is φ = 448904824.

The previous prime is 561131017. The next prime is 561131059. The reversal of 561131035 is 530131165.

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

It is a cyclic number.

It is not a de Polignac number, because 561131035 - 2⁹ = 561130523 is a prime.

It is a Duffinian number.

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, 56113099 + ... + 56113108.

It is an arithmetic number, because the mean of its divisors is an integer number (168339312).

Almost surely, 2^561131035 is an apocalyptic number.

561131035 is a deficient number, since it is larger than the sum of its proper divisors (112226213).

561131035 is a wasteful number, since it uses less digits than its factorization.

561131035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112226212.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 561131035 is about 23688.2045541658. The cubic root of 561131035 is about 824.8116055894.

The spelling of 561131035 in words is "five hundred sixty-one million, one hundred thirty-one thousand, thirty-five".