854129 has 2 divisors, whose sum is σ = 854130. Its totient is φ = 854128.

The previous prime is 854123. The next prime is 854141. The reversal of 854129 is 921458.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 429025 + 425104 = 655^2 + 652^2 .

It is a cyclic number.

It is not a de Polignac number, because 854129 - 2⁸ = 853873 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (854123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427064 + 427065.

It is an arithmetic number, because the mean of its divisors is an integer number (427065).

2⁸⁵⁴¹²⁹ is an apocalyptic number.

It is an amenable number.

854129 is a deficient number, since it is larger than the sum of its proper divisors (1).

854129 is an equidigital number, since it uses as much as digits as its factorization.

854129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 29.

The square root of 854129 is about 924.1909975757. The cubic root of 854129 is about 94.8799591851.

The spelling of 854129 in words is "eight hundred fifty-four thousand, one hundred twenty-nine".