1913275080 has 128 divisors (see below), whose sum is σ = 6456614400. Its totient is φ = 510183360.

The previous prime is 1913275027. The next prime is 1913275121. The reversal of 1913275080 is 805723191.

1913275080 is a `hidden beast` number, since 19 + 132 + 7 + 508 + 0 = 666.

It is a Cunningham number, because it is equal to 43741²-1.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 3.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 76545 + ... + 98415.

It is an arithmetic number, because the mean of its divisors is an integer number (50442300).

Almost surely, 2^1913275080 is an apocalyptic number.

1913275080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1913275080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3228307200).

1913275080 is an abundant number, since it is smaller than the sum of its proper divisors (4543339320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1913275080 is an equidigital number, since it uses as much as digits as its factorization.

1913275080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21903 (or 21881 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 1913275080 is about 43740.9999885691. Note that the first 4 decimals coincide. The cubic root of 1913275080 is about 1241.4402014097.

The spelling of 1913275080 in words is "one billion, nine hundred thirteen million, two hundred seventy-five thousand, eighty".