161038822 has 16 divisors (see below), whose sum is σ = 276233472. Its totient is φ = 68974920.

The previous prime is 161038817. The next prime is 161038849. The reversal of 161038822 is 228830161.

It is a super-2 number, since 2×161038822² = 51867004382295368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 35833 + ... + 40075.

It is an arithmetic number, because the mean of its divisors is an integer number (17264592).

Almost surely, 2^161038822 is an apocalyptic number.

161038822 is a deficient number, since it is larger than the sum of its proper divisors (115194650).

161038822 is a wasteful number, since it uses less digits than its factorization.

161038822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6963.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 161038822 is about 12690.1072493498. The cubic root of 161038822 is about 544.0559049921.

Adding to 161038822 its reverse (228830161), we get a palindrome (389868983).

The spelling of 161038822 in words is "one hundred sixty-one million, thirty-eight thousand, eight hundred twenty-two".