1355434109 has 2 divisors, whose sum is σ = 1355434110. Its totient is φ = 1355434108.

The previous prime is 1355434097. The next prime is 1355434147. The reversal of 1355434109 is 9014345531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 806844025 + 548590084 = 28405^2 + 23422^2 .

It is a cyclic number.

It is not a de Polignac number, because 1355434109 - 2⁸ = 1355433853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1355434169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677717054 + 677717055.

It is an arithmetic number, because the mean of its divisors is an integer number (677717055).

Almost surely, 2^1355434109 is an apocalyptic number.

It is an amenable number.

1355434109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1355434109 is an equidigital number, since it uses as much as digits as its factorization.

1355434109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 1355434109 is about 36816.2207321718. The cubic root of 1355434109 is about 1106.6903849592.

The spelling of 1355434109 in words is "one billion, three hundred fifty-five million, four hundred thirty-four thousand, one hundred nine".