158137471 has 2 divisors, whose sum is σ = 158137472. Its totient is φ = 158137470.

The previous prime is 158137393. The next prime is 158137481. The reversal of 158137471 is 174731851.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 158137471 - 2¹⁵ = 158104703 is a prime.

It is a super-3 number, since 3×158137471³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 158137471.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158137481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79068735 + 79068736.

It is an arithmetic number, because the mean of its divisors is an integer number (79068736).

Almost surely, 2^158137471 is an apocalyptic number.

158137471 is a deficient number, since it is larger than the sum of its proper divisors (1).

158137471 is an equidigital number, since it uses as much as digits as its factorization.

158137471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23520, while the sum is 37.

The square root of 158137471 is about 12575.2722038133. The cubic root of 158137471 is about 540.7687621552.

The spelling of 158137471 in words is "one hundred fifty-eight million, one hundred thirty-seven thousand, four hundred seventy-one".