1498728545 has 8 divisors (see below), whose sum is σ = 1798800360. Its totient is φ = 1198765440.

The previous prime is 1498728521. The next prime is 1498728559. The reversal of 1498728545 is 5458278941.

It can be written as a sum of positive squares in 4 ways, for example, as 272118016 + 1226610529 = 16496^2 + 35023^2 .

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

It is not a de Polignac number, because 1498728545 - 2⁸ = 1498728289 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7085 + ... + 55205.

It is an arithmetic number, because the mean of its divisors is an integer number (224850045).

Almost surely, 2^1498728545 is an apocalyptic number.

It is an amenable number.

1498728545 is a deficient number, since it is larger than the sum of its proper divisors (300071815).

1498728545 is an equidigital number, since it uses as much as digits as its factorization.

1498728545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54355.

The product of its digits is 3225600, while the sum is 53.

The square root of 1498728545 is about 38713.4155687663. The cubic root of 1498728545 is about 1144.3907172038.

The spelling of 1498728545 in words is "one billion, four hundred ninety-eight million, seven hundred twenty-eight thousand, five hundred forty-five".