1347720401 has 2 divisors, whose sum is σ = 1347720402. Its totient is φ = 1347720400.

The previous prime is 1347720383. The next prime is 1347720419. The reversal of 1347720401 is 1040277431.

It is a balanced prime because it is at equal distance from previous prime (1347720383) and next prime (1347720419).

It can be written as a sum of positive squares in only one way, i.e., 1326780625 + 20939776 = 36425^2 + 4576^2 .

It is a cyclic number.

It is not a de Polignac number, because 1347720401 - 2⁶ = 1347720337 is a prime.

It is not a weakly prime, because it can be changed into another prime (1347720431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 673860200 + 673860201.

It is an arithmetic number, because the mean of its divisors is an integer number (673860201).

Almost surely, 2^1347720401 is an apocalyptic number.

It is an amenable number.

1347720401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1347720401 is an equidigital number, since it uses as much as digits as its factorization.

1347720401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 1347720401 is about 36711.3116218966. The cubic root of 1347720401 is about 1104.5870165584.

Adding to 1347720401 its reverse (1040277431), we get a palindrome (2387997832).

The spelling of 1347720401 in words is "one billion, three hundred forty-seven million, seven hundred twenty thousand, four hundred one".