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126899153 is a prime number
BaseRepresentation
bin1111001000001…
…01001111010001
322211210010220122
413210011033101
5224441233103
620331520025
73100424243
oct744051721
9284703818
10126899153
11656a4237
12365b9015
13203a1274
1412bd4093
15b219b38
hex79053d1

126899153 has 2 divisors, whose sum is σ = 126899154. Its totient is φ = 126899152.

The previous prime is 126899117. The next prime is 126899161. The reversal of 126899153 is 351998621.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81848209 + 45050944 = 9047^2 + 6712^2 .

It is a cyclic number.

It is not a de Polignac number, because 126899153 - 212 = 126895057 is a prime.

It is a super-2 number, since 2×1268991532 = 32206790064234818, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (126899173) 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, 63449576 + 63449577.

It is an arithmetic number, because the mean of its divisors is an integer number (63449577).

Almost surely, 2126899153 is an apocalyptic number.

It is an amenable number.

126899153 is a deficient number, since it is larger than the sum of its proper divisors (1).

126899153 is an equidigital number, since it uses as much as digits as its factorization.

126899153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 44.

The square root of 126899153 is about 11264.9524188964. The cubic root of 126899153 is about 502.5194870457.

The spelling of 126899153 in words is "one hundred twenty-six million, eight hundred ninety-nine thousand, one hundred fifty-three".