1383855601 has 2 divisors, whose sum is σ = 1383855602. Its totient is φ = 1383855600.

The previous prime is 1383855581. The next prime is 1383855617. The reversal of 1383855601 is 1065583831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1383765601 + 90000 = 37199^2 + 300^2 .

It is a cyclic number.

It is not a de Polignac number, because 1383855601 - 2²¹ = 1381758449 is a prime.

It is a super-3 number, since 3×1383855601³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1383855661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 691927800 + 691927801.

It is an arithmetic number, because the mean of its divisors is an integer number (691927801).

Almost surely, 2^1383855601 is an apocalyptic number.

It is an amenable number.

1383855601 is a deficient number, since it is larger than the sum of its proper divisors (1).

1383855601 is an equidigital number, since it uses as much as digits as its factorization.

1383855601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 1383855601 is about 37200.2096902692. The cubic root of 1383855601 is about 1114.3721725775.

The spelling of 1383855601 in words is "one billion, three hundred eighty-three million, eight hundred fifty-five thousand, six hundred one".