161000787 has 4 divisors (see below), whose sum is σ = 214667720. Its totient is φ = 107333856.

The previous prime is 161000783. The next prime is 161000789. The reversal of 161000787 is 787000161.

161000787 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 161000787 - 2² = 161000783 is a prime.

It is a super-3 number, since 3×161000787³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161000783) 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, 26833462 + ... + 26833467.

It is an arithmetic number, because the mean of its divisors is an integer number (53666930).

Almost surely, 2^161000787 is an apocalyptic number.

161000787 is a deficient number, since it is larger than the sum of its proper divisors (53666933).

161000787 is an equidigital number, since it uses as much as digits as its factorization.

161000787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53666932.

The product of its (nonzero) digits is 2352, while the sum is 30.

The square root of 161000787 is about 12688.6085525561. The cubic root of 161000787 is about 544.0130689533.

The spelling of 161000787 in words is "one hundred sixty-one million, seven hundred eighty-seven", and thus it is an aban number.