137704231271 has 2 divisors, whose sum is σ = 137704231272. Its totient is φ = 137704231270.

The previous prime is 137704231229. The next prime is 137704231303. The reversal of 137704231271 is 172132407731.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (172132407731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 137704231271 - 2¹⁰ = 137704230247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137704231471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68852115635 + 68852115636.

It is an arithmetic number, because the mean of its divisors is an integer number (68852115636).

Almost surely, 2^137704231271 is an apocalyptic number.

137704231271 is a deficient number, since it is larger than the sum of its proper divisors (1).

137704231271 is an equidigital number, since it uses as much as digits as its factorization.

137704231271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 49392, while the sum is 38.

The spelling of 137704231271 in words is "one hundred thirty-seven billion, seven hundred four million, two hundred thirty-one thousand, two hundred seventy-one".