161238339 has 12 divisors (see below), whose sum is σ = 233131600. Its totient is φ = 107385264.

The previous prime is 161238317. The next prime is 161238379. The reversal of 161238339 is 933832161.

161238339 is a `hidden beast` number, since 1 + 612 + 3 + 8 + 3 + 39 = 666.

It is not a de Polignac number, because 161238339 - 2⁵ = 161238307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161238379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1242 + ... + 18000.

Almost surely, 2^161238339 is an apocalyptic number.

161238339 is a deficient number, since it is larger than the sum of its proper divisors (71893261).

161238339 is a wasteful number, since it uses less digits than its factorization.

161238339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17834 (or 17831 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 161238339 is about 12697.9659394724. The cubic root of 161238339 is about 544.2804959805.

The spelling of 161238339 in words is "one hundred sixty-one million, two hundred thirty-eight thousand, three hundred thirty-nine".