147139 has 2 divisors, whose sum is σ = 147140. Its totient is φ = 147138.

The previous prime is 147137. The next prime is 147151. The reversal of 147139 is 931741.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 147139 - 2¹ = 147137 is a prime.

Together with 147137, it forms a pair of twin primes.

147139 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (147137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73569 + 73570.

It is an arithmetic number, because the mean of its divisors is an integer number (73570).

2¹⁴⁷¹³⁹ is an apocalyptic number.

147139 is a deficient number, since it is larger than the sum of its proper divisors (1).

147139 is an equidigital number, since it uses as much as digits as its factorization.

147139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 756, while the sum is 25.

The square root of 147139 is about 383.5870175071. The cubic root of 147139 is about 52.7929503520.

The spelling of 147139 in words is "one hundred forty-seven thousand, one hundred thirty-nine".