137187047 has 2 divisors, whose sum is σ = 137187048. Its totient is φ = 137187046.

The previous prime is 137186963. The next prime is 137187067. The reversal of 137187047 is 740781731.

It is a strong prime.

It is an emirp because it is prime and its reverse (740781731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 137187047 - 2²⁴ = 120409831 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 137187047.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137187067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68593523 + 68593524.

It is an arithmetic number, because the mean of its divisors is an integer number (68593524).

Almost surely, 2^137187047 is an apocalyptic number.

137187047 is a deficient number, since it is larger than the sum of its proper divisors (1).

137187047 is an equidigital number, since it uses as much as digits as its factorization.

137187047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32928, while the sum is 38.

The square root of 137187047 is about 11712.6874371341. The cubic root of 137187047 is about 515.7481782580.

The spelling of 137187047 in words is "one hundred thirty-seven million, one hundred eighty-seven thousand, forty-seven".