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38128141 is a prime number
BaseRepresentation
bin1001000101110…
…0101000001101
32122202002222101
42101130220031
534230100031
63441115101
7642040522
oct221345015
978662871
1038128141
111a582267
1210928a91
137b8c83c
1450c7149
153532361
hex245ca0d

38128141 has 2 divisors, whose sum is σ = 38128142. Its totient is φ = 38128140.

The previous prime is 38128133. The next prime is 38128151. The reversal of 38128141 is 14182183.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19766916 + 18361225 = 4446^2 + 4285^2 .

It is an emirp because it is prime and its reverse (14182183) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38128141 - 23 = 38128133 is a prime.

It is a super-2 number, since 2×381281412 = 2907510272231762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38128151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19064070 + 19064071.

It is an arithmetic number, because the mean of its divisors is an integer number (19064071).

Almost surely, 238128141 is an apocalyptic number.

It is an amenable number.

38128141 is a deficient number, since it is larger than the sum of its proper divisors (1).

38128141 is an equidigital number, since it uses as much as digits as its factorization.

38128141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1536, while the sum is 28.

The square root of 38128141 is about 6174.7988631210. The cubic root of 38128141 is about 336.5750174781.

The spelling of 38128141 in words is "thirty-eight million, one hundred twenty-eight thousand, one hundred forty-one".