1539129552 has 80 divisors (see below), whose sum is σ = 4150781952. Its totient is φ = 490959360.

The previous prime is 1539129541. The next prime is 1539129563. The reversal of 1539129552 is 2559219351.

It is an interprime number because it is at equal distance from previous prime (1539129541) and next prime (1539129563).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101233 + ... + 115439.

Almost surely, 2^1539129552 is an apocalyptic number.

1539129552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1539129552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2075390976).

1539129552 is an abundant number, since it is smaller than the sum of its proper divisors (2611652400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1539129552 is a wasteful number, since it uses less digits than its factorization.

1539129552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14316 (or 14310 counting only the distinct ones).

The product of its digits is 121500, while the sum is 42.

The square root of 1539129552 is about 39231.7416386273. The cubic root of 1539129552 is about 1154.5827349015.

The spelling of 1539129552 in words is "one billion, five hundred thirty-nine million, one hundred twenty-nine thousand, five hundred fifty-two".