1383765601 has 3 divisors (see below), whose sum is σ = 1383802801. Its totient is φ = 1383728402.

The previous prime is 1383765599. The next prime is 1383765613. The reversal of 1383765601 is 1065673831.

It is a happy number.

The square root of 1383765601 is 37199.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1065673831 = 8821 ⋅120811.

It is not a de Polignac number, because 1383765601 - 2¹ = 1383765599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1383765001) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 18600 + ... + 55798.

Almost surely, 2^1383765601 is an apocalyptic number.

1383765601 is the 37199-th square number.

1383765601 is the 18600-th centered octagonal number.

It is an amenable number.

1383765601 is a deficient number, since it is larger than the sum of its proper divisors (37200).

1383765601 is an frugal number, since it uses more digits than its factorization.

1383765601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74398 (or 37199 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The cubic root of 1383765601 is about 1114.3480140671.

The spelling of 1383765601 in words is "one billion, three hundred eighty-three million, seven hundred sixty-five thousand, six hundred one".