1535479849 has 4 divisors (see below), whose sum is σ = 1588427460. Its totient is φ = 1482532240.

The previous prime is 1535479823. The next prime is 1535479859. The reversal of 1535479849 is 9489745351.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 422590249 + 1112889600 = 20557^2 + 33360^2 .

It is a cyclic number.

It is not a de Polignac number, because 1535479849 - 2¹³ = 1535471657 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1535479849.

It is not an unprimeable number, because it can be changed into a prime (1535479859) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 26473762 + ... + 26473819.

It is an arithmetic number, because the mean of its divisors is an integer number (397106865).

Almost surely, 2^1535479849 is an apocalyptic number.

It is an amenable number.

1535479849 is a deficient number, since it is larger than the sum of its proper divisors (52947611).

1535479849 is an equidigital number, since it uses as much as digits as its factorization.

1535479849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52947610.

The product of its digits is 5443200, while the sum is 55.

The square root of 1535479849 is about 39185.1993614936. The cubic root of 1535479849 is about 1153.6694006464.

The spelling of 1535479849 in words is "one billion, five hundred thirty-five million, four hundred seventy-nine thousand, eight hundred forty-nine".