158441587 has 4 divisors (see below), whose sum is σ = 163905120. Its totient is φ = 152978056.

The previous prime is 158441573. The next prime is 158441593. The reversal of 158441587 is 785144851.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 785144851 = 14423 ⋅54437.

It is a cyclic number.

It is not a de Polignac number, because 158441587 - 2¹⁵ = 158408819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158441537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2731723 + ... + 2731780.

It is an arithmetic number, because the mean of its divisors is an integer number (40976280).

Almost surely, 2^158441587 is an apocalyptic number.

158441587 is a deficient number, since it is larger than the sum of its proper divisors (5463533).

158441587 is an equidigital number, since it uses as much as digits as its factorization.

158441587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5463532.

The product of its digits is 179200, while the sum is 43.

The square root of 158441587 is about 12587.3582216444. The cubic root of 158441587 is about 541.1151930625.

The spelling of 158441587 in words is "one hundred fifty-eight million, four hundred forty-one thousand, five hundred eighty-seven".