149047 has 4 divisors (see below), whose sum is σ = 150480. Its totient is φ = 147616.

The previous prime is 149033. The next prime is 149053. The reversal of 149047 is 740941.

149047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 149047 - 2¹⁵ = 116279 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 (149027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 547 + ... + 772.

It is an arithmetic number, because the mean of its divisors is an integer number (37620).

2¹⁴⁹⁰⁴⁷ is an apocalyptic number.

149047 is a deficient number, since it is larger than the sum of its proper divisors (1433).

149047 is a wasteful number, since it uses less digits than its factorization.

149047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1432.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 149047 is about 386.0660565240. The cubic root of 149047 is about 53.0201655790.

Adding to 149047 its reverse (740941), we get a palindrome (889988).

The spelling of 149047 in words is "one hundred forty-nine thousand, forty-seven".