1652579539 has 4 divisors (see below), whose sum is σ = 1779701056. Its totient is φ = 1525458024.

The previous prime is 1652579491. The next prime is 1652579543. The reversal of 1652579539 is 9359752561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9359752561 = 107 ⋅87474323.

It is a cyclic number.

It is not a de Polignac number, because 1652579539 - 2¹¹ = 1652577491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1652579039) 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, 63560739 + ... + 63560764.

It is an arithmetic number, because the mean of its divisors is an integer number (444925264).

Almost surely, 2^1652579539 is an apocalyptic number.

1652579539 is a deficient number, since it is larger than the sum of its proper divisors (127121517).

1652579539 is a wasteful number, since it uses less digits than its factorization.

1652579539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127121516.

The product of its digits is 2551500, while the sum is 52.

The square root of 1652579539 is about 40651.9315531255. The cubic root of 1652579539 is about 1182.2812183091.

The spelling of 1652579539 in words is "one billion, six hundred fifty-two million, five hundred seventy-nine thousand, five hundred thirty-nine".