149147 has 8 divisors (see below), whose sum is σ = 159600. Its totient is φ = 139104.

The previous prime is 149143. The next prime is 149153. The reversal of 149147 is 741941.

149147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 149147 - 2² = 149143 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (149143) 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, 1004 + ... + 1142.

It is an arithmetic number, because the mean of its divisors is an integer number (19950).

2¹⁴⁹¹⁴⁷ is an apocalyptic number.

149147 is a deficient number, since it is larger than the sum of its proper divisors (10453).

149147 is a wasteful number, since it uses less digits than its factorization.

149147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205.

The product of its digits is 1008, while the sum is 26.

The square root of 149147 is about 386.1955463234. The cubic root of 149147 is about 53.0320205224.

The spelling of 149147 in words is "one hundred forty-nine thousand, one hundred forty-seven".