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120372149 is a prime number
BaseRepresentation
bin1110010110010…
…11101110110101
322101111112112202
413023023232311
5221303402044
615535554245
72661101132
oct713135665
9271445482
10120372149
1161a46417
123438b985
131bc27431
1411db5589
15a87ac4e
hex72cbbb5

120372149 has 2 divisors, whose sum is σ = 120372150. Its totient is φ = 120372148.

The previous prime is 120372143. The next prime is 120372151. The reversal of 120372149 is 941273021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84456100 + 35916049 = 9190^2 + 5993^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-120372149 is a prime.

Together with 120372151, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120372143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60186074 + 60186075.

It is an arithmetic number, because the mean of its divisors is an integer number (60186075).

Almost surely, 2120372149 is an apocalyptic number.

It is an amenable number.

120372149 is a deficient number, since it is larger than the sum of its proper divisors (1).

120372149 is an equidigital number, since it uses as much as digits as its factorization.

120372149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 120372149 is about 10971.4242010780. The cubic root of 120372149 is about 493.7517766533.

The spelling of 120372149 in words is "one hundred twenty million, three hundred seventy-two thousand, one hundred forty-nine".