137683439 has 2 divisors, whose sum is σ = 137683440. Its totient is φ = 137683438.

The previous prime is 137683423. The next prime is 137683457. The reversal of 137683439 is 934386731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 137683439 - 2⁴ = 137683423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 137683439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137683409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68841719 + 68841720.

It is an arithmetic number, because the mean of its divisors is an integer number (68841720).

Almost surely, 2^137683439 is an apocalyptic number.

137683439 is a deficient number, since it is larger than the sum of its proper divisors (1).

137683439 is an equidigital number, since it uses as much as digits as its factorization.

137683439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 44.

The square root of 137683439 is about 11733.8586577477. The cubic root of 137683439 is about 516.3694835291.

The spelling of 137683439 in words is "one hundred thirty-seven million, six hundred eighty-three thousand, four hundred thirty-nine".