851480129 has 2 divisors, whose sum is σ = 851480130. Its totient is φ = 851480128.

The previous prime is 851480099. The next prime is 851480137. The reversal of 851480129 is 921084158.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 695904400 + 155575729 = 26380^2 + 12473^2 .

It is a cyclic number.

It is not a de Polignac number, because 851480129 - 2¹⁶ = 851414593 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 851480092 and 851480101.

It is not a weakly prime, because it can be changed into another prime (851480159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 425740064 + 425740065.

It is an arithmetic number, because the mean of its divisors is an integer number (425740065).

Almost surely, 2^851480129 is an apocalyptic number.

It is an amenable number.

851480129 is a deficient number, since it is larger than the sum of its proper divisors (1).

851480129 is an equidigital number, since it uses as much as digits as its factorization.

851480129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 38.

The square root of 851480129 is about 29180.1324362999. The cubic root of 851480129 is about 947.8177533225.

The spelling of 851480129 in words is "eight hundred fifty-one million, four hundred eighty thousand, one hundred twenty-nine".