1351211205 has 8 divisors (see below), whose sum is σ = 2161937952. Its totient is φ = 720645968.

The previous prime is 1351211143. The next prime is 1351211209. The reversal of 1351211205 is 5021121531.

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 1351211205 - 2¹⁰ = 1351210181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1351211209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45040359 + ... + 45040388.

It is an arithmetic number, because the mean of its divisors is an integer number (270242244).

Almost surely, 2^1351211205 is an apocalyptic number.

1351211205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1351211205 is a deficient number, since it is larger than the sum of its proper divisors (810726747).

1351211205 is an equidigital number, since it uses as much as digits as its factorization.

1351211205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90080755.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 1351211205 is about 36758.8248588009. The cubic root of 1351211205 is about 1105.5398780056.

Adding to 1351211205 its reverse (5021121531), we get a palindrome (6372332736).

The spelling of 1351211205 in words is "one billion, three hundred fifty-one million, two hundred eleven thousand, two hundred five".