1384021141 has 2 divisors, whose sum is σ = 1384021142. Its totient is φ = 1384021140.

The previous prime is 1384021127. The next prime is 1384021169. The reversal of 1384021141 is 1411204831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1020546916 + 363474225 = 31946^2 + 19065^2 .

It is a cyclic number.

It is not a de Polignac number, because 1384021141 - 2⁷ = 1384021013 is a prime.

It is a super-3 number, since 3×1384021141³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1384022141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 692010570 + 692010571.

It is an arithmetic number, because the mean of its divisors is an integer number (692010571).

Almost surely, 2^1384021141 is an apocalyptic number.

It is an amenable number.

1384021141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1384021141 is an equidigital number, since it uses as much as digits as its factorization.

1384021141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 1384021141 is about 37202.4346111918. The cubic root of 1384021141 is about 1114.4166053960.

Adding to 1384021141 its reverse (1411204831), we get a palindrome (2795225972).

The spelling of 1384021141 in words is "one billion, three hundred eighty-four million, twenty-one thousand, one hundred forty-one".