1386730801 has 4 divisors (see below), whose sum is σ = 1387349104. Its totient is φ = 1386112500.

The previous prime is 1386730771. The next prime is 1386730811. The reversal of 1386730801 is 1080376831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1080376831 = 4253 ⋅254027.

It is a cyclic number.

It is not a de Polignac number, because 1386730801 - 2⁵ = 1386730769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1386730811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 305775 + ... + 310276.

It is an arithmetic number, because the mean of its divisors is an integer number (346837276).

Almost surely, 2^1386730801 is an apocalyptic number.

It is an amenable number.

1386730801 is a deficient number, since it is larger than the sum of its proper divisors (618303).

1386730801 is an equidigital number, since it uses as much as digits as its factorization.

1386730801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618302.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 1386730801 is about 37238.8345816568. The cubic root of 1386730801 is about 1115.1434058481.

The spelling of 1386730801 in words is "one billion, three hundred eighty-six million, seven hundred thirty thousand, eight hundred one".