165429157 has 2 divisors, whose sum is σ = 165429158. Its totient is φ = 165429156.

The previous prime is 165429149. The next prime is 165429163. The reversal of 165429157 is 751924561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 158533281 + 6895876 = 12591^2 + 2626^2 .

It is a cyclic number.

It is not a de Polignac number, because 165429157 - 2³ = 165429149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165429197) 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, 82714578 + 82714579.

It is an arithmetic number, because the mean of its divisors is an integer number (82714579).

Almost surely, 2^165429157 is an apocalyptic number.

It is an amenable number.

165429157 is a deficient number, since it is larger than the sum of its proper divisors (1).

165429157 is an equidigital number, since it uses as much as digits as its factorization.

165429157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75600, while the sum is 40.

The square root of 165429157 is about 12861.9266441696. The cubic root of 165429157 is about 548.9557674302.

The spelling of 165429157 in words is "one hundred sixty-five million, four hundred twenty-nine thousand, one hundred fifty-seven".