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15144149 is a prime number
BaseRepresentation
bin111001110001…
…010011010101
31001111101212102
4321301103111
512334103044
61300331445
7242503016
oct71612325
931441772
1015144149
118604029
1250a3b85
1331a3147
14202300d
1514e224e
hexe714d5

15144149 has 2 divisors, whose sum is σ = 15144150. Its totient is φ = 15144148.

The previous prime is 15144139. The next prime is 15144163. The reversal of 15144149 is 94144151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8305924 + 6838225 = 2882^2 + 2615^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-15144149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15144109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7572074 + 7572075.

It is an arithmetic number, because the mean of its divisors is an integer number (7572075).

Almost surely, 215144149 is an apocalyptic number.

It is an amenable number.

15144149 is a deficient number, since it is larger than the sum of its proper divisors (1).

15144149 is an equidigital number, since it uses as much as digits as its factorization.

15144149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 29.

The square root of 15144149 is about 3891.5484064830. The cubic root of 15144149 is about 247.4086946817.

The spelling of 15144149 in words is "fifteen million, one hundred forty-four thousand, one hundred forty-nine".