137506207 has 2 divisors, whose sum is σ = 137506208. Its totient is φ = 137506206.

The previous prime is 137506199. The next prime is 137506241. The reversal of 137506207 is 702605731.

137506207 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 137506207 - 2³ = 137506199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137506277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68753103 + 68753104.

It is an arithmetic number, because the mean of its divisors is an integer number (68753104).

Almost surely, 2^137506207 is an apocalyptic number.

137506207 is a deficient number, since it is larger than the sum of its proper divisors (1).

137506207 is an equidigital number, since it uses as much as digits as its factorization.

137506207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 137506207 is about 11726.3040639410. The cubic root of 137506207 is about 516.1478241115.

The spelling of 137506207 in words is "one hundred thirty-seven million, five hundred six thousand, two hundred seven".