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987104149 is a prime number
BaseRepresentation
bin111010110101100…
…000001110010101
32112210102002022221
4322311200032111
54010144313044
6241541022341
733314150443
oct7265401625
92483362287
10987104149
11467215a59
122366b49b1
131296734c5
1495151b93
155b9d5484
hex3ad60395

987104149 has 2 divisors, whose sum is σ = 987104150. Its totient is φ = 987104148.

The previous prime is 987104141. The next prime is 987104203. The reversal of 987104149 is 941401789.

987104149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 794394225 + 192709924 = 28185^2 + 13882^2 .

It is an emirp because it is prime and its reverse (941401789) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 987104149 - 23 = 987104141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (987104141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493552074 + 493552075.

It is an arithmetic number, because the mean of its divisors is an integer number (493552075).

Almost surely, 2987104149 is an apocalyptic number.

It is an amenable number.

987104149 is a deficient number, since it is larger than the sum of its proper divisors (1).

987104149 is an equidigital number, since it uses as much as digits as its factorization.

987104149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 987104149 is about 31418.2136506836. The cubic root of 987104149 is about 995.6827713590.

The spelling of 987104149 in words is "nine hundred eighty-seven million, one hundred four thousand, one hundred forty-nine".