161322038 has 8 divisors (see below), whose sum is σ = 243250560. Its totient is φ = 80238520.

The previous prime is 161322019. The next prime is 161322067. The reversal of 161322038 is 830223161.

161322038 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 161321998 and 161322016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210773 + ... + 211536.

It is an arithmetic number, because the mean of its divisors is an integer number (30406320).

Almost surely, 2^161322038 is an apocalyptic number.

161322038 is a deficient number, since it is larger than the sum of its proper divisors (81928522).

161322038 is a wasteful number, since it uses less digits than its factorization.

161322038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422502.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 161322038 is about 12701.2612759521. The cubic root of 161322038 is about 544.3746585581.

Adding to 161322038 its reverse (830223161), we get a palindrome (991545199).

The spelling of 161322038 in words is "one hundred sixty-one million, three hundred twenty-two thousand, thirty-eight".