161112037 has 2 divisors, whose sum is σ = 161112038. Its totient is φ = 161112036.

The previous prime is 161111957. The next prime is 161112101. The reversal of 161112037 is 730211161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 157904356 + 3207681 = 12566^2 + 1791^2 .

It is a cyclic number.

It is not a de Polignac number, because 161112037 - 2¹¹ = 161109989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 161111999 and 161112017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161112337) 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 as a sum of consecutive naturals, namely, 80556018 + 80556019.

It is an arithmetic number, because the mean of its divisors is an integer number (80556019).

Almost surely, 2^161112037 is an apocalyptic number.

It is an amenable number.

161112037 is a deficient number, since it is larger than the sum of its proper divisors (1).

161112037 is an equidigital number, since it uses as much as digits as its factorization.

161112037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 161112037 is about 12692.9916489376. The cubic root of 161112037 is about 544.1383427081.

Adding to 161112037 its reverse (730211161), we get a palindrome (891323198).

The spelling of 161112037 in words is "one hundred sixty-one million, one hundred twelve thousand, thirty-seven".