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15144139 is a prime number
BaseRepresentation
bin111001110001…
…010011001011
31001111101212001
4321301103023
512334103024
61300331431
7242503003
oct71612313
931441761
1015144139
11860401a
1250a3b77
1331a313a
142023003
1514e2244
hexe714cb

15144139 has 2 divisors, whose sum is σ = 15144140. Its totient is φ = 15144138.

The previous prime is 15144109. The next prime is 15144149. The reversal of 15144139 is 93144151.

It is a strong prime.

It is an emirp because it is prime and its reverse (93144151) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15144139 - 213 = 15135947 is a prime.

It is a Chen prime.

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, 7572069 + 7572070.

It is an arithmetic number, because the mean of its divisors is an integer number (7572070).

Almost surely, 215144139 is an apocalyptic number.

15144139 is a deficient number, since it is larger than the sum of its proper divisors (1).

15144139 is an equidigital number, since it uses as much as digits as its factorization.

15144139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 28.

The square root of 15144139 is about 3891.5471216471. The cubic root of 15144139 is about 247.4086402253.

The spelling of 15144139 in words is "fifteen million, one hundred forty-four thousand, one hundred thirty-nine".