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129036473 is a prime number
BaseRepresentation
bin1111011000011…
…11000010111001
322222210201202122
413230033002321
5231013131343
620445411025
73124535426
oct754170271
9288721678
10129036473
1166924015
1237269a75
132096c057
14131ccd4d
15b4dd068
hex7b0f0b9

129036473 has 2 divisors, whose sum is σ = 129036474. Its totient is φ = 129036472.

The previous prime is 129036469. The next prime is 129036487. The reversal of 129036473 is 374630921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92409769 + 36626704 = 9613^2 + 6052^2 .

It is a cyclic number.

It is not a de Polignac number, because 129036473 - 22 = 129036469 is a prime.

It is a super-2 number, since 2×1290364732 = 33300822728559458, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (129036433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64518236 + 64518237.

It is an arithmetic number, because the mean of its divisors is an integer number (64518237).

Almost surely, 2129036473 is an apocalyptic number.

It is an amenable number.

129036473 is a deficient number, since it is larger than the sum of its proper divisors (1).

129036473 is an equidigital number, since it uses as much as digits as its factorization.

129036473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 129036473 is about 11359.4222124191. The cubic root of 129036473 is about 505.3250503470.

The spelling of 129036473 in words is "one hundred twenty-nine million, thirty-six thousand, four hundred seventy-three".