158447 has 6 divisors (see below), whose sum is σ = 167352. Its totient is φ = 149732.

The previous prime is 158443. The next prime is 158449. The reversal of 158447 is 744851.

It is not a de Polignac number, because 158447 - 2² = 158443 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 158447.

It is not an unprimeable number, because it can be changed into a prime (158443) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1868 + ... + 1950.

It is an arithmetic number, because the mean of its divisors is an integer number (27892).

2¹⁵⁸⁴⁴⁷ is an apocalyptic number.

158447 is a deficient number, since it is larger than the sum of its proper divisors (8905).

158447 is an frugal number, since it uses more digits than its factorization.

158447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189 (or 106 counting only the distinct ones).

The product of its digits is 4480, while the sum is 29.

The square root of 158447 is about 398.0540164350. The cubic root of 158447 is about 54.1121355214.

It can be divided in two parts, 15844 and 7, that added together give a palindrome (15851).

The spelling of 158447 in words is "one hundred fifty-eight thousand, four hundred forty-seven".