1387411171 has 2 divisors, whose sum is σ = 1387411172. Its totient is φ = 1387411170.

The previous prime is 1387411153. The next prime is 1387411219. The reversal of 1387411171 is 1711147831.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (1711147831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1387411171 - 2¹³ = 1387402979 is a prime.

It is not a weakly prime, because it can be changed into another prime (1387471171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 693705585 + 693705586.

It is an arithmetic number, because the mean of its divisors is an integer number (693705586).

Almost surely, 2^1387411171 is an apocalyptic number.

1387411171 is a deficient number, since it is larger than the sum of its proper divisors (1).

1387411171 is an equidigital number, since it uses as much as digits as its factorization.

1387411171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4704, while the sum is 34.

The square root of 1387411171 is about 37247.9686828691. The cubic root of 1387411171 is about 1115.3257498355.

The spelling of 1387411171 in words is "one billion, three hundred eighty-seven million, four hundred eleven thousand, one hundred seventy-one".