Search a number
-
+
112173491 is a prime number
BaseRepresentation
bin1101010111110…
…10000110110011
321211002000002202
412223322012303
5212204022431
615044133415
72531313263
oct653720663
9254060082
10112173491
1158356671
123169726b
131a316761
1410c7d7a3
159cab8cb
hex6afa1b3

112173491 has 2 divisors, whose sum is σ = 112173492. Its totient is φ = 112173490.

The previous prime is 112173433. The next prime is 112173533. The reversal of 112173491 is 194371211.

It is a strong prime.

It is an emirp because it is prime and its reverse (194371211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 112173491 - 214 = 112157107 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (112173401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56086745 + 56086746.

It is an arithmetic number, because the mean of its divisors is an integer number (56086746).

Almost surely, 2112173491 is an apocalyptic number.

112173491 is a deficient number, since it is larger than the sum of its proper divisors (1).

112173491 is an equidigital number, since it uses as much as digits as its factorization.

112173491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1512, while the sum is 29.

The square root of 112173491 is about 10591.1987517939. The cubic root of 112173491 is about 482.2772160939.

The spelling of 112173491 in words is "one hundred twelve million, one hundred seventy-three thousand, four hundred ninety-one".