8554831157 has 2 divisors, whose sum is σ = 8554831158. Its totient is φ = 8554831156.

The previous prime is 8554831147. The next prime is 8554831303. The reversal of 8554831157 is 7511384558.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6208494436 + 2346336721 = 78794^2 + 48439^2 .

It is a cyclic number.

It is not a de Polignac number, because 8554831157 - 2⁶ = 8554831093 is a prime.

It is a super-2 number, since 2×8554831157² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8554831147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4277415578 + 4277415579.

It is an arithmetic number, because the mean of its divisors is an integer number (4277415579).

Almost surely, 2^8554831157 is an apocalyptic number.

It is an amenable number.

8554831157 is a deficient number, since it is larger than the sum of its proper divisors (1).

8554831157 is an equidigital number, since it uses as much as digits as its factorization.

8554831157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 672000, while the sum is 47.

The square root of 8554831157 is about 92492.3302604059. The cubic root of 8554831157 is about 2045.2064207795.

The spelling of 8554831157 in words is "eight billion, five hundred fifty-four million, eight hundred thirty-one thousand, one hundred fifty-seven".