158667171 has 48 divisors (see below), whose sum is σ = 249026400. Its totient is φ = 89456640.

The previous prime is 158667169. The next prime is 158667181. The reversal of 158667171 is 171766851.

It is a happy number.

It is not a de Polignac number, because 158667171 - 2¹ = 158667169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (158667121) 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 in 47 ways as a sum of consecutive naturals, for example, 353155 + ... + 353603.

It is an arithmetic number, because the mean of its divisors is an integer number (5188050).

Almost surely, 2^158667171 is an apocalyptic number.

158667171 is a deficient number, since it is larger than the sum of its proper divisors (90359229).

158667171 is a wasteful number, since it uses less digits than its factorization.

158667171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536 (or 523 counting only the distinct ones).

The product of its digits is 70560, while the sum is 42.

The square root of 158667171 is about 12596.3157708911. The cubic root of 158667171 is about 541.3718787096.

The spelling of 158667171 in words is "one hundred fifty-eight million, six hundred sixty-seven thousand, one hundred seventy-one".