1913148801 has 10 divisors (see below), whose sum is σ = 2857913762. Its totient is φ = 1275432480.

The previous prime is 1913148799. The next prime is 1913148829. The reversal of 1913148801 is 1088413191.

It can be written as a sum of positive squares in only one way, i.e., 1866240000 + 46908801 = 43200^2 + 6849^2 .

It is not a de Polignac number, because 1913148801 - 2¹ = 1913148799 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1913148851) 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 in 9 ways as a sum of consecutive naturals, for example, 11809480 + ... + 11809641.

Almost surely, 2^1913148801 is an apocalyptic number.

It is an amenable number.

1913148801 is a deficient number, since it is larger than the sum of its proper divisors (944764961).

1913148801 is an equidigital number, since it uses as much as digits as its factorization.

1913148801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23619133 (or 23619124 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 36.

The square root of 1913148801 is about 43739.5564792328. The cubic root of 1913148801 is about 1241.4128885091.

The spelling of 1913148801 in words is "one billion, nine hundred thirteen million, one hundred forty-eight thousand, eight hundred one".