1480721765 has 8 divisors (see below), whose sum is σ = 1820204568. Its totient is φ = 1155685120.

The previous prime is 1480721731. The next prime is 1480721771. The reversal of 1480721765 is 5671270841.

It can be written as a sum of positive squares in 4 ways, for example, as 75446596 + 1405275169 = 8686^2 + 37487^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1480721765 - 2¹⁰ = 1480720741 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 3611312 + ... + 3611721.

It is an arithmetic number, because the mean of its divisors is an integer number (227525571).

Almost surely, 2^1480721765 is an apocalyptic number.

It is an amenable number.

1480721765 is a deficient number, since it is larger than the sum of its proper divisors (339482803).

1480721765 is an equidigital number, since it uses as much as digits as its factorization.

1480721765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7223079.

The product of its (nonzero) digits is 94080, while the sum is 41.

The square root of 1480721765 is about 38480.1476738331. The cubic root of 1480721765 is about 1139.7890665958.

The spelling of 1480721765 in words is "one billion, four hundred eighty million, seven hundred twenty-one thousand, seven hundred sixty-five".