1610610081 has 4 divisors (see below), whose sum is σ = 2147480112. Its totient is φ = 1073740052.

The previous prime is 1610610077. The next prime is 1610610083. The reversal of 1610610081 is 1800160161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1610610081 - 2² = 1610610077 is a prime.

It is a super-2 number, since 2×1610610081² = 5188129666037653122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1610610083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268435011 + ... + 268435016.

It is an arithmetic number, because the mean of its divisors is an integer number (536870028).

Almost surely, 2^1610610081 is an apocalyptic number.

It is an amenable number.

1610610081 is a deficient number, since it is larger than the sum of its proper divisors (536870031).

1610610081 is an equidigital number, since it uses as much as digits as its factorization.

1610610081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536870030.

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 1610610081 is about 40132.4068677671. The cubic root of 1610610081 is about 1172.1867402804.

The spelling of 1610610081 in words is "one billion, six hundred ten million, six hundred ten thousand, eighty-one".