1520416045 has 8 divisors (see below), whose sum is σ = 1826443800. Its totient is φ = 1215036480.

The previous prime is 1520416021. The next prime is 1520416069. The reversal of 1520416045 is 5406140251.

It is an interprime number because it is at equal distance from previous prime (1520416021) and next prime (1520416069).

It can be written as a sum of positive squares in 4 ways, for example, as 210772324 + 1309643721 = 14518^2 + 36189^2 .

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

It is not a de Polignac number, because 1520416045 - 2⁵ = 1520416013 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156870 + ... + 166279.

It is an arithmetic number, because the mean of its divisors is an integer number (228305475).

Almost surely, 2^1520416045 is an apocalyptic number.

It is an amenable number.

1520416045 is a deficient number, since it is larger than the sum of its proper divisors (306027755).

1520416045 is an equidigital number, since it uses as much as digits as its factorization.

1520416045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324095.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 1520416045 is about 38992.5126787182. The cubic root of 1520416045 is about 1149.8843097230.

Adding to 1520416045 its reverse (5406140251), we get a palindrome (6926556296).

The spelling of 1520416045 in words is "one billion, five hundred twenty million, four hundred sixteen thousand, forty-five".