1355465591 has 2 divisors, whose sum is σ = 1355465592. Its totient is φ = 1355465590.

The previous prime is 1355465557. The next prime is 1355465603. The reversal of 1355465591 is 1955645531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1355465591 - 2²² = 1351271287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1355465521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677732795 + 677732796.

It is an arithmetic number, because the mean of its divisors is an integer number (677732796).

Almost surely, 2^1355465591 is an apocalyptic number.

1355465591 is a deficient number, since it is larger than the sum of its proper divisors (1).

1355465591 is an equidigital number, since it uses as much as digits as its factorization.

1355465591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 405000, while the sum is 44.

The square root of 1355465591 is about 36816.6482857959. The cubic root of 1355465591 is about 1106.6989530769.

The spelling of 1355465591 in words is "one billion, three hundred fifty-five million, four hundred sixty-five thousand, five hundred ninety-one".