857699153 has 2 divisors, whose sum is σ = 857699154. Its totient is φ = 857699152.

The previous prime is 857699149. The next prime is 857699173. The reversal of 857699153 is 351996758.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 600642064 + 257057089 = 24508^2 + 16033^2 .

It is a cyclic number.

It is not a de Polignac number, because 857699153 - 2² = 857699149 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 857699095 and 857699104.

It is not a weakly prime, because it can be changed into another prime (857699173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 428849576 + 428849577.

It is an arithmetic number, because the mean of its divisors is an integer number (428849577).

Almost surely, 2^857699153 is an apocalyptic number.

It is an amenable number.

857699153 is a deficient number, since it is larger than the sum of its proper divisors (1).

857699153 is an equidigital number, since it uses as much as digits as its factorization.

857699153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2041200, while the sum is 53.

The square root of 857699153 is about 29286.5012078944. The cubic root of 857699153 is about 950.1197090146.

The spelling of 857699153 in words is "eight hundred fifty-seven million, six hundred ninety-nine thousand, one hundred fifty-three".