139149 has 6 divisors (see below), whose sum is σ = 201006. Its totient is φ = 92760.

The previous prime is 139133. The next prime is 139169. The reversal of 139149 is 941931.

It can be written as a sum of positive squares in only one way, i.e., 101124 + 38025 = 318^2 + 195^2 .

It is not a de Polignac number, because 139149 - 2⁴ = 139133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7722 + ... + 7739.

It is an arithmetic number, because the mean of its divisors is an integer number (33501).

2¹³⁹¹⁴⁹ is an apocalyptic number.

It is an amenable number.

139149 is a deficient number, since it is larger than the sum of its proper divisors (61857).

139149 is a wasteful number, since it uses less digits than its factorization.

139149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15467 (or 15464 counting only the distinct ones).

The product of its digits is 972, while the sum is 27.

The square root of 139149 is about 373.0268086881. The cubic root of 139149 is about 51.8195172996.

The spelling of 139149 in words is "one hundred thirty-nine thousand, one hundred forty-nine".