1481045641 has 4 divisors (see below), whose sum is σ = 1481323284. Its totient is φ = 1480768000.

The previous prime is 1481045639. The next prime is 1481045659. The reversal of 1481045641 is 1465401841.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1465401841 = 61 ⋅24022981.

It can be written as a sum of positive squares in 2 ways, for example, as 1057550400 + 423495241 = 32520^2 + 20579^2 .

It is a cyclic number.

It is not a de Polignac number, because 1481045641 - 2¹ = 1481045639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1481045597 and 1481045606.

It is not an unprimeable number, because it can be changed into a prime (1481045441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130660 + ... + 141541.

It is an arithmetic number, because the mean of its divisors is an integer number (370330821).

Almost surely, 2^1481045641 is an apocalyptic number.

It is an amenable number.

1481045641 is a deficient number, since it is larger than the sum of its proper divisors (277643).

1481045641 is an equidigital number, since it uses as much as digits as its factorization.

1481045641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277642.

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 1481045641 is about 38484.3557955697. The cubic root of 1481045641 is about 1139.8721619756.

The spelling of 1481045641 in words is "one billion, four hundred eighty-one million, forty-five thousand, six hundred forty-one".