161339083 has 4 divisors (see below), whose sum is σ = 163984048. Its totient is φ = 158694120.

The previous prime is 161339077. The next prime is 161339131. The reversal of 161339083 is 380933161.

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 161339083 - 2²¹ = 159241931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161339023) by changing a digit.

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, 1322391 + ... + 1322512.

It is an arithmetic number, because the mean of its divisors is an integer number (40996012).

Almost surely, 2^161339083 is an apocalyptic number.

161339083 is a deficient number, since it is larger than the sum of its proper divisors (2644965).

161339083 is an equidigital number, since it uses as much as digits as its factorization.

161339083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2644964.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 161339083 is about 12701.9322545824. The cubic root of 161339083 is about 544.3938304361.

The spelling of 161339083 in words is "one hundred sixty-one million, three hundred thirty-nine thousand, eighty-three".