1561000119 has 32 divisors (see below), whose sum is σ = 2507880960. Its totient is φ = 843696000.

The previous prime is 1561000117. The next prime is 1561000153. The reversal of 1561000119 is 9110001651.

It is not a de Polignac number, because 1561000119 - 2¹ = 1561000117 is a prime.

It is a super-2 number, since 2×1561000119² = 4873442743036028322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1561000117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 276909 + ... + 282489.

It is an arithmetic number, because the mean of its divisors is an integer number (78371280).

Almost surely, 2^1561000119 is an apocalyptic number.

1561000119 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1561000119 is a deficient number, since it is larger than the sum of its proper divisors (946880841).

1561000119 is a wasteful number, since it uses less digits than its factorization.

1561000119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6311.

The product of its (nonzero) digits is 270, while the sum is 24.

The square root of 1561000119 is about 39509.4940362440. The cubic root of 1561000119 is about 1160.0257918859.

The spelling of 1561000119 in words is "one billion, five hundred sixty-one million, one hundred nineteen", and thus it is an aban number.