161008373 has 2 divisors, whose sum is σ = 161008374. Its totient is φ = 161008372.

The previous prime is 161008361. The next prime is 161008381. The reversal of 161008373 is 373800161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135536164 + 25472209 = 11642^2 + 5047^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161008373 is a prime.

It is a super-2 number, since 2×161008373² = 51847392352214258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161004373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80504186 + 80504187.

It is an arithmetic number, because the mean of its divisors is an integer number (80504187).

Almost surely, 2^161008373 is an apocalyptic number.

It is an amenable number.

161008373 is a deficient number, since it is larger than the sum of its proper divisors (1).

161008373 is an equidigital number, since it uses as much as digits as its factorization.

161008373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 161008373 is about 12688.9074785814. The cubic root of 161008373 is about 544.0216130488.

The spelling of 161008373 in words is "one hundred sixty-one million, eight thousand, three hundred seventy-three".