1371228361 has 2 divisors, whose sum is σ = 1371228362. Its totient is φ = 1371228360.

The previous prime is 1371228317. The next prime is 1371228367. The reversal of 1371228361 is 1638221731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1301405625 + 69822736 = 36075^2 + 8356^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1371228361 is a prime.

It is not a weakly prime, because it can be changed into another prime (1371228367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 685614180 + 685614181.

It is an arithmetic number, because the mean of its divisors is an integer number (685614181).

Almost surely, 2^1371228361 is an apocalyptic number.

It is an amenable number.

1371228361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1371228361 is an equidigital number, since it uses as much as digits as its factorization.

1371228361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 34.

The square root of 1371228361 is about 37030.1007425041. The cubic root of 1371228361 is about 1110.9723808900.

The spelling of 1371228361 in words is "one billion, three hundred seventy-one million, two hundred twenty-eight thousand, three hundred sixty-one".