1913497601 has 2 divisors, whose sum is σ = 1913497602. Its totient is φ = 1913497600.

The previous prime is 1913497583. The next prime is 1913497693. The reversal of 1913497601 is 1067943191.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1840839025 + 72658576 = 42905^2 + 8524^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1913497601 is a prime.

It is a super-2 number, since 2×1913497601² = 7322946138065510402, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1913497501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 956748800 + 956748801.

It is an arithmetic number, because the mean of its divisors is an integer number (956748801).

Almost surely, 2^1913497601 is an apocalyptic number.

It is an amenable number.

1913497601 is a deficient number, since it is larger than the sum of its proper divisors (1).

1913497601 is an equidigital number, since it uses as much as digits as its factorization.

1913497601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 1913497601 is about 43743.5435350178. The cubic root of 1913497601 is about 1241.4883275799.

The spelling of 1913497601 in words is "one billion, nine hundred thirteen million, four hundred ninety-seven thousand, six hundred one".