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149101 is a prime number
BaseRepresentation
bin100100011001101101
321120112021
4210121231
514232401
63110141
71160461
oct443155
9246467
10149101
11a2027
1272351
1352b34
143c4a1
152e2a1
hex2466d

149101 has 2 divisors, whose sum is σ = 149102. Its totient is φ = 149100.

The previous prime is 149099. The next prime is 149111. The reversal of 149101 is 101941.

It is a happy number.

149101 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., 133225 + 15876 = 365^2 + 126^2 .

It is a cyclic number.

It is not a de Polignac number, because 149101 - 21 = 149099 is a prime.

It is a super-2 number, since 2×1491012 = 44462216402, which contains 22 as substring.

Together with 149099, it forms a pair of twin primes.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74550 + 74551.

It is an arithmetic number, because the mean of its divisors is an integer number (74551).

2149101 is an apocalyptic number.

It is an amenable number.

149101 is a deficient number, since it is larger than the sum of its proper divisors (1).

149101 is an equidigital number, since it uses as much as digits as its factorization.

149101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 149101 is about 386.1359864089. The cubic root of 149101 is about 53.0265679068.

The spelling of 149101 in words is "one hundred forty-nine thousand, one hundred one".