1355234191 has 2 divisors, whose sum is σ = 1355234192. Its totient is φ = 1355234190.

The previous prime is 1355234107. The next prime is 1355234207. The reversal of 1355234191 is 1914325531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1355234191 - 2²⁵ = 1321679759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1355234291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677617095 + 677617096.

It is an arithmetic number, because the mean of its divisors is an integer number (677617096).

Almost surely, 2^1355234191 is an apocalyptic number.

1355234191 is a deficient number, since it is larger than the sum of its proper divisors (1).

1355234191 is an equidigital number, since it uses as much as digits as its factorization.

1355234191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16200, while the sum is 34.

The square root of 1355234191 is about 36813.5055516315. The cubic root of 1355234191 is about 1106.6359723285.

The spelling of 1355234191 in words is "one billion, three hundred fifty-five million, two hundred thirty-four thousand, one hundred ninety-one".