158405134 has 16 divisors (see below), whose sum is σ = 251035200. Its totient is φ = 74843104.

The previous prime is 158405123. The next prime is 158405141. The reversal of 158405134 is 431504851.

158405134 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 158405096 and 158405105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26329 + ... + 31780.

It is an arithmetic number, because the mean of its divisors is an integer number (15689700).

Almost surely, 2^158405134 is an apocalyptic number.

158405134 is a deficient number, since it is larger than the sum of its proper divisors (92630066).

158405134 is a wasteful number, since it uses less digits than its factorization.

158405134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58187.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 158405134 is about 12585.9101379280. The cubic root of 158405134 is about 541.0736913637.

Adding to 158405134 its reverse (431504851), we get a palindrome (589909985).

The spelling of 158405134 in words is "one hundred fifty-eight million, four hundred five thousand, one hundred thirty-four".