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99149 is a prime number
BaseRepresentation
bin11000001101001101
312001000012
4120031031
511133044
62043005
7562031
oct301515
9161005
1099149
1168546
1249465
133618b
14281c1
151e59e
hex1834d

99149 has 2 divisors, whose sum is σ = 99150. Its totient is φ = 99148.

The previous prime is 99139. The next prime is 99173. The reversal of 99149 is 94199.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94249 + 4900 = 307^2 + 70^2 .

It is a cyclic number.

It is not a de Polignac number, because 99149 - 24 = 99133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49574 + 49575.

It is an arithmetic number, because the mean of its divisors is an integer number (49575).

299149 is an apocalyptic number.

It is an amenable number.

99149 is a deficient number, since it is larger than the sum of its proper divisors (1).

99149 is an equidigital number, since it uses as much as digits as its factorization.

99149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2916, while the sum is 32.

The square root of 99149 is about 314.8793419709. The cubic root of 99149 is about 46.2838466633.

Subtracting from 99149 its reverse (94199), we obtain a triangular number (4950 = T99).

The spelling of 99149 in words is "ninety-nine thousand, one hundred forty-nine".