149587 has 4 divisors (see below), whose sum is σ = 157480. Its totient is φ = 141696.

The previous prime is 149579. The next prime is 149603. The reversal of 149587 is 785941.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 785941 = 13 ⋅60457.

It is a cyclic number.

It is not a de Polignac number, because 149587 - 2³ = 149579 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3918 + ... + 3955.

It is an arithmetic number, because the mean of its divisors is an integer number (39370).

2¹⁴⁹⁵⁸⁷ is an apocalyptic number.

149587 is a deficient number, since it is larger than the sum of its proper divisors (7893).

149587 is an equidigital number, since it uses as much as digits as its factorization.

149587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7892.

The product of its digits is 10080, while the sum is 34.

The square root of 149587 is about 386.7647864012. The cubic root of 149587 is about 53.0841194148.

The spelling of 149587 in words is "one hundred forty-nine thousand, five hundred eighty-seven".