1561112422 has 8 divisors (see below), whose sum is σ = 2345465736. Its totient is φ = 779290512.

The previous prime is 1561112411. The next prime is 1561112437. The reversal of 1561112422 is 2242111651.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 631308 + ... + 633775.

It is an arithmetic number, because the mean of its divisors is an integer number (293183217).

Almost surely, 2^1561112422 is an apocalyptic number.

1561112422 is a deficient number, since it is larger than the sum of its proper divisors (784353314).

1561112422 is a wasteful number, since it uses less digits than its factorization.

1561112422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265702.

The product of its digits is 960, while the sum is 25.

The square root of 1561112422 is about 39510.9152260486. The cubic root of 1561112422 is about 1160.0536097895.

The spelling of 1561112422 in words is "one billion, five hundred sixty-one million, one hundred twelve thousand, four hundred twenty-two".