1913256341 has 2 divisors, whose sum is σ = 1913256342. Its totient is φ = 1913256340.

The previous prime is 1913256287. The next prime is 1913256361. The reversal of 1913256341 is 1436523191.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1491118225 + 422138116 = 38615^2 + 20546^2 .

It is a cyclic number.

It is not a de Polignac number, because 1913256341 - 2¹⁰ = 1913255317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1913256361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 956628170 + 956628171.

It is an arithmetic number, because the mean of its divisors is an integer number (956628171).

Almost surely, 2^1913256341 is an apocalyptic number.

It is an amenable number.

1913256341 is a deficient number, since it is larger than the sum of its proper divisors (1).

1913256341 is an equidigital number, since it uses as much as digits as its factorization.

1913256341 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 35.

The square root of 1913256341 is about 43740.7857839797. The cubic root of 1913256341 is about 1241.4361484250.

The spelling of 1913256341 in words is "one billion, nine hundred thirteen million, two hundred fifty-six thousand, three hundred forty-one".