137677219 has 2 divisors, whose sum is σ = 137677220. Its totient is φ = 137677218.

The previous prime is 137677153. The next prime is 137677223. The reversal of 137677219 is 912776731.

It is a strong prime.

It is an emirp because it is prime and its reverse (912776731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 137677219 - 2¹⁷ = 137546147 is a prime.

It is a super-2 number, since 2×137677219² = 37910033263147922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (137677229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68838609 + 68838610.

It is an arithmetic number, because the mean of its divisors is an integer number (68838610).

Almost surely, 2^137677219 is an apocalyptic number.

137677219 is a deficient number, since it is larger than the sum of its proper divisors (1).

137677219 is an equidigital number, since it uses as much as digits as its factorization.

137677219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 111132, while the sum is 43.

The square root of 137677219 is about 11733.5936098026. The cubic root of 137677219 is about 516.3617075599.

The spelling of 137677219 in words is "one hundred thirty-seven million, six hundred seventy-seven thousand, two hundred nineteen".