137438207 has 2 divisors, whose sum is σ = 137438208. Its totient is φ = 137438206.

The previous prime is 137438201. The next prime is 137438269. The reversal of 137438207 is 702834731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 137438207 - 2⁶ = 137438143 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 (137438201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68719103 + 68719104.

It is an arithmetic number, because the mean of its divisors is an integer number (68719104).

Almost surely, 2^137438207 is an apocalyptic number.

137438207 is a deficient number, since it is larger than the sum of its proper divisors (1).

137438207 is an equidigital number, since it uses as much as digits as its factorization.

137438207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 137438207 is about 11723.4042410897. The cubic root of 137438207 is about 516.0627277366.

The spelling of 137438207 in words is "one hundred thirty-seven million, four hundred thirty-eight thousand, two hundred seven".