1384866541 has 2 divisors, whose sum is σ = 1384866542. Its totient is φ = 1384866540.

The previous prime is 1384866533. The next prime is 1384866559. The reversal of 1384866541 is 1456684831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 763361641 + 621504900 = 27629^2 + 24930^2 .

It is a cyclic number.

It is not a de Polignac number, because 1384866541 - 2³ = 1384866533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1384866491 and 1384866500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1384866341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 692433270 + 692433271.

It is an arithmetic number, because the mean of its divisors is an integer number (692433271).

Almost surely, 2^1384866541 is an apocalyptic number.

It is an amenable number.

1384866541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1384866541 is an equidigital number, since it uses as much as digits as its factorization.

1384866541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 552960, while the sum is 46.

The square root of 1384866541 is about 37213.7950362497. The cubic root of 1384866541 is about 1114.6434651380.

The spelling of 1384866541 in words is "one billion, three hundred eighty-four million, eight hundred sixty-six thousand, five hundred forty-one".