1341383891 has 2 divisors, whose sum is σ = 1341383892. Its totient is φ = 1341383890.

The previous prime is 1341383783. The next prime is 1341383947. The reversal of 1341383891 is 1983831431.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1341383891 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1341383291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670691945 + 670691946.

It is an arithmetic number, because the mean of its divisors is an integer number (670691946).

Almost surely, 2^1341383891 is an apocalyptic number.

1341383891 is a deficient number, since it is larger than the sum of its proper divisors (1).

1341383891 is an equidigital number, since it uses as much as digits as its factorization.

1341383891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 41.

The square root of 1341383891 is about 36624.9080681440. The cubic root of 1341383891 is about 1102.8531691128.

The spelling of 1341383891 in words is "one billion, three hundred forty-one million, three hundred eighty-three thousand, eight hundred ninety-one".