137956487 has 2 divisors, whose sum is σ = 137956488. Its totient is φ = 137956486.

The previous prime is 137956471. The next prime is 137956501. The reversal of 137956487 is 784659731.

It is a strong prime.

It is an emirp because it is prime and its reverse (784659731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 137956487 - 2⁴ = 137956471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137956457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68978243 + 68978244.

It is an arithmetic number, because the mean of its divisors is an integer number (68978244).

Almost surely, 2^137956487 is an apocalyptic number.

137956487 is a deficient number, since it is larger than the sum of its proper divisors (1).

137956487 is an equidigital number, since it uses as much as digits as its factorization.

137956487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1270080, while the sum is 50.

The square root of 137956487 is about 11745.4879421844. The cubic root of 137956487 is about 516.7106055360.

The spelling of 137956487 in words is "one hundred thirty-seven million, nine hundred fifty-six thousand, four hundred eighty-seven".