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2015007149 is a prime number
BaseRepresentation
bin111100000011010…
…1001000110101101
312012102120222011102
41320012221012231
513111320212044
6531540332445
7100635164261
oct17006510655
95172528142
102015007149
11944467771
124829a4125
1326160002c
141518840a1
15bbd7924e
hex781a91ad

2015007149 has 2 divisors, whose sum is σ = 2015007150. Its totient is φ = 2015007148.

The previous prime is 2015007131. The next prime is 2015007179. The reversal of 2015007149 is 9417005102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1105562500 + 909444649 = 33250^2 + 30157^2 .

It is a cyclic number.

It is not a de Polignac number, because 2015007149 - 28 = 2015006893 is a prime.

It is a super-2 number, since 2×20150071492 = 8120507621042216402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2015007109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1007503574 + 1007503575.

It is an arithmetic number, because the mean of its divisors is an integer number (1007503575).

Almost surely, 22015007149 is an apocalyptic number.

It is an amenable number.

2015007149 is a deficient number, since it is larger than the sum of its proper divisors (1).

2015007149 is an equidigital number, since it uses as much as digits as its factorization.

2015007149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 2015007149 is about 44888.8310050507. The cubic root of 2015007149 is about 1263.0645043951.

The spelling of 2015007149 in words is "two billion, fifteen million, seven thousand, one hundred forty-nine".