1386333901 has 12 divisors (see below), whose sum is σ = 1534488732. Its totient is φ = 1248046976.

The previous prime is 1386333887. The next prime is 1386333911. The reversal of 1386333901 is 1093336831.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 405015625 + 981318276 = 20125^2 + 31326^2 .

It is not a de Polignac number, because 1386333901 - 2¹⁹ = 1385809613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1386333911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68086 + ... + 86071.

It is an arithmetic number, because the mean of its divisors is an integer number (127874061).

Almost surely, 2^1386333901 is an apocalyptic number.

It is an amenable number.

1386333901 is a deficient number, since it is larger than the sum of its proper divisors (148154831).

1386333901 is a wasteful number, since it uses less digits than its factorization.

1386333901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154220 (or 154197 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 1386333901 is about 37233.5050861452. The cubic root of 1386333901 is about 1115.0370062858.

The spelling of 1386333901 in words is "one billion, three hundred eighty-six million, three hundred thirty-three thousand, nine hundred one".