1301403205 has 4 divisors (see below), whose sum is σ = 1561683852. Its totient is φ = 1041122560.

The previous prime is 1301403143. The next prime is 1301403209. The reversal of 1301403205 is 5023041031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5023041031 = 14771 ⋅340061.

It can be written as a sum of positive squares in 2 ways, for example, as 847159236 + 454243969 = 29106^2 + 21313^2 .

It is not a de Polignac number, because 1301403205 - 2¹³ = 1301395013 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 (1301403209) 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, 130140316 + ... + 130140325.

It is an arithmetic number, because the mean of its divisors is an integer number (390420963).

Almost surely, 2^1301403205 is an apocalyptic number.

It is an amenable number.

1301403205 is a deficient number, since it is larger than the sum of its proper divisors (260280647).

1301403205 is an equidigital number, since it uses as much as digits as its factorization.

1301403205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260280646.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 1301403205 is about 36074.9664587509. The cubic root of 1301403205 is about 1091.7854208230.

Adding to 1301403205 its reverse (5023041031), we get a palindrome (6324444236).

The spelling of 1301403205 in words is "one billion, three hundred one million, four hundred three thousand, two hundred five".