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149706101 is a prime number
BaseRepresentation
bin10001110110001…
…01010101110101
3101102200212011102
420323011111311
5301311043401
622504415445
73465323636
oct1073052565
9342625142
10149706101
1177561456
1242177585
13250281bc
1415c4d88d
15d22256b
hex8ec5575

149706101 has 2 divisors, whose sum is σ = 149706102. Its totient is φ = 149706100.

The previous prime is 149706077. The next prime is 149706133. The reversal of 149706101 is 101607941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80982001 + 68724100 = 8999^2 + 8290^2 .

It is an emirp because it is prime and its reverse (101607941) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-149706101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149706001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74853050 + 74853051.

It is an arithmetic number, because the mean of its divisors is an integer number (74853051).

Almost surely, 2149706101 is an apocalyptic number.

It is an amenable number.

149706101 is a deficient number, since it is larger than the sum of its proper divisors (1).

149706101 is an equidigital number, since it uses as much as digits as its factorization.

149706101 is an odious number, because the sum of its binary digits is odd.

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

The square root of 149706101 is about 12235.4444545345. Note that the first 4 decimals coincide. The cubic root of 149706101 is about 530.9820418264.

The spelling of 149706101 in words is "one hundred forty-nine million, seven hundred six thousand, one hundred one".