137268487 has 2 divisors, whose sum is σ = 137268488. Its totient is φ = 137268486.

The previous prime is 137268457. The next prime is 137268493. The reversal of 137268487 is 784862731.

It is a strong prime.

It is an emirp because it is prime and its reverse (784862731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 137268487 - 2⁷ = 137268359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137268437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68634243 + 68634244.

It is an arithmetic number, because the mean of its divisors is an integer number (68634244).

Almost surely, 2^137268487 is an apocalyptic number.

137268487 is a deficient number, since it is larger than the sum of its proper divisors (1).

137268487 is an equidigital number, since it uses as much as digits as its factorization.

137268487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 451584, while the sum is 46.

The square root of 137268487 is about 11716.1634932259. The cubic root of 137268487 is about 515.8502146718.

The spelling of 137268487 in words is "one hundred thirty-seven million, two hundred sixty-eight thousand, four hundred eighty-seven".