1341420257 has 2 divisors, whose sum is σ = 1341420258. Its totient is φ = 1341420256.

The previous prime is 1341420203. The next prime is 1341420271. The reversal of 1341420257 is 7520241431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1308196561 + 33223696 = 36169^2 + 5764^2 .

It is a cyclic number.

It is not a de Polignac number, because 1341420257 - 2¹⁴ = 1341403873 is a prime.

It is not a weakly prime, because it can be changed into another prime (1341420557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670710128 + 670710129.

It is an arithmetic number, because the mean of its divisors is an integer number (670710129).

Almost surely, 2^1341420257 is an apocalyptic number.

It is an amenable number.

1341420257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1341420257 is an equidigital number, since it uses as much as digits as its factorization.

1341420257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 1341420257 is about 36625.4045301892. The cubic root of 1341420257 is about 1102.8631354359.

Adding to 1341420257 its reverse (7520241431), we get a palindrome (8861661688).

The spelling of 1341420257 in words is "one billion, three hundred forty-one million, four hundred twenty thousand, two hundred fifty-seven".