157066771 has 2 divisors, whose sum is σ = 157066772. Its totient is φ = 157066770.

The previous prime is 157066769. The next prime is 157066781. The reversal of 157066771 is 177660751.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 157066771 - 2¹ = 157066769 is a prime.

Together with 157066769, it forms a pair of twin primes.

It is equal to p_8819185 and since 157066771 and 8819185 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (157066751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78533385 + 78533386.

It is an arithmetic number, because the mean of its divisors is an integer number (78533386).

Almost surely, 2^157066771 is an apocalyptic number.

157066771 is a deficient number, since it is larger than the sum of its proper divisors (1).

157066771 is an equidigital number, since it uses as much as digits as its factorization.

157066771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61740, while the sum is 40.

The square root of 157066771 is about 12532.6282558767. The cubic root of 157066771 is about 539.5455378438.

The spelling of 157066771 in words is "one hundred fifty-seven million, sixty-six thousand, seven hundred seventy-one".