1351397 has 2 divisors, whose sum is σ = 1351398. Its totient is φ = 1351396.

The previous prime is 1351387. The next prime is 1351403. The reversal of 1351397 is 7931531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1267876 + 83521 = 1126^2 + 289^2 .

It is a cyclic number.

It is not a de Polignac number, because 1351397 - 2¹⁰ = 1350373 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1351327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 675698 + 675699.

It is an arithmetic number, because the mean of its divisors is an integer number (675699).

2^1351397 is an apocalyptic number.

It is an amenable number.

1351397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1351397 is an equidigital number, since it uses as much as digits as its factorization.

1351397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2835, while the sum is 29.

The square root of 1351397 is about 1162.4960214986. The cubic root of 1351397 is about 110.5590547204.

The spelling of 1351397 in words is "one million, three hundred fifty-one thousand, three hundred ninety-seven".