1386156799 has 16 divisors (see below), whose sum is σ = 1478131200. Its totient is φ = 1296171936.

The previous prime is 1386156781. The next prime is 1386156803. The reversal of 1386156799 is 9976516831.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1386156799 - 2¹³ = 1386148607 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 (1386156899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 701577 + ... + 703549.

It is an arithmetic number, because the mean of its divisors is an integer number (92383200).

Almost surely, 2^1386156799 is an apocalyptic number.

1386156799 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1386156799 is a deficient number, since it is larger than the sum of its proper divisors (91974401).

1386156799 is a wasteful number, since it uses less digits than its factorization.

1386156799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2454.

The product of its digits is 2449440, while the sum is 55.

The square root of 1386156799 is about 37231.1267489986. The cubic root of 1386156799 is about 1114.9895228493.

The spelling of 1386156799 in words is "one billion, three hundred eighty-six million, one hundred fifty-six thousand, seven hundred ninety-nine".