1339805101 has 4 divisors (see below), whose sum is σ = 1352326752. Its totient is φ = 1327283452.

The previous prime is 1339805087. The next prime is 1339805107. The reversal of 1339805101 is 1015089331.

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.

It is a cyclic number.

It is not a de Polignac number, because 1339805101 - 2¹¹ = 1339803053 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1339805107) 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, 6260665 + ... + 6260878.

It is an arithmetic number, because the mean of its divisors is an integer number (338081688).

Almost surely, 2^1339805101 is an apocalyptic number.

It is an amenable number.

1339805101 is a deficient number, since it is larger than the sum of its proper divisors (12521651).

1339805101 is a wasteful number, since it uses less digits than its factorization.

1339805101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12521650.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 1339805101 is about 36603.3482211669. The cubic root of 1339805101 is about 1102.4203183518.

The spelling of 1339805101 in words is "one billion, three hundred thirty-nine million, eight hundred five thousand, one hundred one".