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BaseRepresentation
bin100100000110101001
321111212002
4210012221
514213011
63100345
71154066
oct440651
9244762
10147881
11a1118
12716b5
1352406
143bc6d
152dc3b
hex241a9

147881 has 2 divisors, whose sum is σ = 147882. Its totient is φ = 147880.

The previous prime is 147863. The next prime is 147919. The reversal of 147881 is 188741.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 144400 + 3481 = 380^2 + 59^2 .

It is a cyclic number.

It is not a de Polignac number, because 147881 - 210 = 146857 is a prime.

It is a super-2 number, since 2×1478812 = 43737580322, which contains 22 as substring.

It is a Chen prime.

It is a d-powerful number, because it can be written as 1 + 48 + 85 + 75 + 85 + 1 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 147881.

It is not a weakly prime, because it can be changed into another prime (147811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73940 + 73941.

It is an arithmetic number, because the mean of its divisors is an integer number (73941).

2147881 is an apocalyptic number.

It is an amenable number.

147881 is a deficient number, since it is larger than the sum of its proper divisors (1).

147881 is an equidigital number, since it uses as much as digits as its factorization.

147881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1792, while the sum is 29.

The square root of 147881 is about 384.5529872462. The cubic root of 147881 is about 52.8815439182.

The spelling of 147881 in words is "one hundred forty-seven thousand, eight hundred eighty-one".