149939 has 2 divisors, whose sum is σ = 149940. Its totient is φ = 149938.

The previous prime is 149921. The next prime is 149953. The reversal of 149939 is 939941.

149939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 149899 and 149908.

It is not a weakly prime, because it can be changed into another prime (149909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74969 + 74970.

It is an arithmetic number, because the mean of its divisors is an integer number (74970).

2¹⁴⁹⁹³⁹ is an apocalyptic number.

149939 is a deficient number, since it is larger than the sum of its proper divisors (1).

149939 is an equidigital number, since it uses as much as digits as its factorization.

149939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8748, while the sum is 35.

The square root of 149939 is about 387.2195759514. The cubic root of 149939 is about 53.1257250189.

The spelling of 149939 in words is "one hundred forty-nine thousand, nine hundred thirty-nine".