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115121207 is a prime number
BaseRepresentation
bin1101101110010…
…01110000110111
322000121202121102
412313021300313
5213432334312
615231240315
72565341225
oct667116067
9260552542
10115121207
1159a8a2a3
123267909b
131ab09376
1411409b15
15a18eec2
hex6dc9c37

115121207 has 2 divisors, whose sum is σ = 115121208. Its totient is φ = 115121206.

The previous prime is 115121183. The next prime is 115121221. The reversal of 115121207 is 702121511.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 115121207 - 212 = 115117111 is a prime.

It is a super-2 number, since 2×1151212072 = 26505784602273698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115121267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57560603 + 57560604.

It is an arithmetic number, because the mean of its divisors is an integer number (57560604).

Almost surely, 2115121207 is an apocalyptic number.

115121207 is a deficient number, since it is larger than the sum of its proper divisors (1).

115121207 is an equidigital number, since it uses as much as digits as its factorization.

115121207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 140, while the sum is 20.

The square root of 115121207 is about 10729.4551119803. The cubic root of 115121207 is about 486.4652003302.

Adding to 115121207 its reverse (702121511), we get a palindrome (817242718).

The spelling of 115121207 in words is "one hundred fifteen million, one hundred twenty-one thousand, two hundred seven".