1913730853 has 2 divisors, whose sum is σ = 1913730854. Its totient is φ = 1913730852.

The previous prime is 1913730827. The next prime is 1913730887. The reversal of 1913730853 is 3580373191.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1684117444 + 229613409 = 41038^2 + 15153^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1913730853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1913730653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 956865426 + 956865427.

It is an arithmetic number, because the mean of its divisors is an integer number (956865427).

Almost surely, 2^1913730853 is an apocalyptic number.

It is an amenable number.

1913730853 is a deficient number, since it is larger than the sum of its proper divisors (1).

1913730853 is an equidigital number, since it uses as much as digits as its factorization.

1913730853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 1913730853 is about 43746.2095843743. The cubic root of 1913730853 is about 1241.5387706132.

The spelling of 1913730853 in words is "one billion, nine hundred thirteen million, seven hundred thirty thousand, eight hundred fifty-three".