1355009923 has 2 divisors, whose sum is σ = 1355009924. Its totient is φ = 1355009922.

The previous prime is 1355009917. The next prime is 1355009933. The reversal of 1355009923 is 3299005531.

It is a weak prime.

It is an emirp because it is prime and its reverse (3299005531) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1355009923 is a prime.

It is not a weakly prime, because it can be changed into another prime (1355009933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677504961 + 677504962.

It is an arithmetic number, because the mean of its divisors is an integer number (677504962).

Almost surely, 2^1355009923 is an apocalyptic number.

1355009923 is a deficient number, since it is larger than the sum of its proper divisors (1).

1355009923 is an equidigital number, since it uses as much as digits as its factorization.

1355009923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36450, while the sum is 37.

The square root of 1355009923 is about 36810.4594239192. The cubic root of 1355009923 is about 1106.5749258739.

The spelling of 1355009923 in words is "one billion, three hundred fifty-five million, nine thousand, nine hundred twenty-three".