137671477 has 2 divisors, whose sum is σ = 137671478. Its totient is φ = 137671476.

The previous prime is 137671459. The next prime is 137671489. The reversal of 137671477 is 774176731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127373796 + 10297681 = 11286^2 + 3209^2 .

It is an emirp because it is prime and its reverse (774176731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 137671477 - 2⁷ = 137671349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137671427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68835738 + 68835739.

It is an arithmetic number, because the mean of its divisors is an integer number (68835739).

Almost surely, 2^137671477 is an apocalyptic number.

It is an amenable number.

137671477 is a deficient number, since it is larger than the sum of its proper divisors (1).

137671477 is an equidigital number, since it uses as much as digits as its factorization.

137671477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 172872, while the sum is 43.

The square root of 137671477 is about 11733.3489251790. The cubic root of 137671477 is about 516.3545289572.

The spelling of 137671477 in words is "one hundred thirty-seven million, six hundred seventy-one thousand, four hundred seventy-seven".