158426 has 8 divisors (see below), whose sum is σ = 240084. Its totient is φ = 78400.

The previous prime is 158419. The next prime is 158429. The reversal of 158426 is 624851.

It can be written as a sum of positive squares in 2 ways, for example, as 156025 + 2401 = 395^2 + 49^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 158395 and 158404.

It is not an unprimeable number, because it can be changed into a prime (158429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125 + ... + 576.

2¹⁵⁸⁴²⁶ is an apocalyptic number.

158426 is a deficient number, since it is larger than the sum of its proper divisors (81658).

158426 is a wasteful number, since it uses less digits than its factorization.

158426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816.

The product of its digits is 1920, while the sum is 26.

The square root of 158426 is about 398.0276372314. The cubic root of 158426 is about 54.1097448060.

The spelling of 158426 in words is "one hundred fifty-eight thousand, four hundred twenty-six".