137200939 has 2 divisors, whose sum is σ = 137200940. Its totient is φ = 137200938.

The previous prime is 137200933. The next prime is 137200991. The reversal of 137200939 is 939002731.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137200939 is a prime.

It is not a weakly prime, because it can be changed into another prime (137200933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68600469 + 68600470.

It is an arithmetic number, because the mean of its divisors is an integer number (68600470).

Almost surely, 2^137200939 is an apocalyptic number.

137200939 is a deficient number, since it is larger than the sum of its proper divisors (1).

137200939 is an equidigital number, since it uses as much as digits as its factorization.

137200939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10206, while the sum is 34.

The square root of 137200939 is about 11713.2804542536. The cubic root of 137200939 is about 515.7655864415.

The spelling of 137200939 in words is "one hundred thirty-seven million, two hundred thousand, nine hundred thirty-nine".