1480321921 has 8 divisors (see below), whose sum is σ = 1598096360. Its totient is φ = 1363105152.

The previous prime is 1480321861. The next prime is 1480321957. The reversal of 1480321921 is 1291230841.

It can be written as a sum of positive squares in 4 ways, for example, as 596092225 + 884229696 = 24415^2 + 29736^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1480321921 - 2⁷ = 1480321793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1480321981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133890 + ... + 144523.

It is an arithmetic number, because the mean of its divisors is an integer number (199762045).

Almost surely, 2^1480321921 is an apocalyptic number.

It is an amenable number.

1480321921 is a deficient number, since it is larger than the sum of its proper divisors (117774439).

1480321921 is a wasteful number, since it uses less digits than its factorization.

1480321921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278835.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 1480321921 is about 38474.9518648172. The cubic root of 1480321921 is about 1139.6864637396.

The spelling of 1480321921 in words is "one billion, four hundred eighty million, three hundred twenty-one thousand, nine hundred twenty-one".