137399 has 2 divisors, whose sum is σ = 137400. Its totient is φ = 137398.

The previous prime is 137393. The next prime is 137413. The reversal of 137399 is 993731.

It is a happy number.

137399 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 137399 - 2⁴ = 137383 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68699 + 68700.

It is an arithmetic number, because the mean of its divisors is an integer number (68700).

2¹³⁷³⁹⁹ is an apocalyptic number.

137399 is a deficient number, since it is larger than the sum of its proper divisors (1).

137399 is an equidigital number, since it uses as much as digits as its factorization.

137399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5103, while the sum is 32.

The square root of 137399 is about 370.6737109642. The cubic root of 137399 is about 51.6013650661.

The spelling of 137399 in words is "one hundred thirty-seven thousand, three hundred ninety-nine".