1386115261 has 8 divisors (see below), whose sum is σ = 1432720800. Its totient is φ = 1340280240.

The previous prime is 1386115231. The next prime is 1386115267. The reversal of 1386115261 is 1625116831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1386115261 - 2¹⁷ = 1385984189 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 (1386115267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188971 + ... + 196168.

It is an arithmetic number, because the mean of its divisors is an integer number (179090100).

Almost surely, 2^1386115261 is an apocalyptic number.

It is an amenable number.

1386115261 is a deficient number, since it is larger than the sum of its proper divisors (46605539).

1386115261 is an equidigital number, since it uses as much as digits as its factorization.

1386115261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385259.

The product of its digits is 8640, while the sum is 34.

The square root of 1386115261 is about 37230.5689051349. The cubic root of 1386115261 is about 1114.9783853653.

The spelling of 1386115261 in words is "one billion, three hundred eighty-six million, one hundred fifteen thousand, two hundred sixty-one".