158541 has 8 divisors (see below), whose sum is σ = 216480. Its totient is φ = 103152.

The previous prime is 158537. The next prime is 158551. The reversal of 158541 is 145851.

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

It is not a de Polignac number, because 158541 - 2² = 158537 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 486 + ... + 743.

It is an arithmetic number, because the mean of its divisors is an integer number (27060).

2¹⁵⁸⁵⁴¹ is an apocalyptic number.

It is an amenable number.

158541 is a deficient number, since it is larger than the sum of its proper divisors (57939).

158541 is a wasteful number, since it uses less digits than its factorization.

158541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275.

The product of its digits is 800, while the sum is 24.

The square root of 158541 is about 398.1720733552. The cubic root of 158541 is about 54.1228342307.

The spelling of 158541 in words is "one hundred fifty-eight thousand, five hundred forty-one".