1388141 has 2 divisors, whose sum is σ = 1388142. Its totient is φ = 1388140.

The previous prime is 1388117. The next prime is 1388161. The reversal of 1388141 is 1418831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1371241 + 16900 = 1171^2 + 130^2 .

It is an emirp because it is prime and its reverse (1418831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1388141 - 2⁶ = 1388077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1388141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1388161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 694070 + 694071.

It is an arithmetic number, because the mean of its divisors is an integer number (694071).

2^1388141 is an apocalyptic number.

It is an amenable number.

1388141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1388141 is an equidigital number, since it uses as much as digits as its factorization.

1388141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 768, while the sum is 26.

The square root of 1388141 is about 1178.1939568679. The cubic root of 1388141 is about 111.5521282927.

The spelling of 1388141 in words is "one million, three hundred eighty-eight thousand, one hundred forty-one".