158789458 has 16 divisors (see below), whose sum is σ = 241678080. Its totient is φ = 78235216.

The previous prime is 158789443. The next prime is 158789461. The reversal of 158789458 is 854987851.

It is a junction number, because it is equal to n+sod(n) for n = 158789399 and 158789408.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 78516 + ... + 80512.

It is an arithmetic number, because the mean of its divisors is an integer number (15104880).

Almost surely, 2^158789458 is an apocalyptic number.

158789458 is a deficient number, since it is larger than the sum of its proper divisors (82888622).

158789458 is a wasteful number, since it uses less digits than its factorization.

158789458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2561.

The product of its digits is 3225600, while the sum is 55.

The square root of 158789458 is about 12601.1689140333. The cubic root of 158789458 is about 541.5109239449.

The spelling of 158789458 in words is "one hundred fifty-eight million, seven hundred eighty-nine thousand, four hundred fifty-eight".