1539719052 has 12 divisors (see below), whose sum is σ = 3592677816. Its totient is φ = 513239680.

The previous prime is 1539719039. The next prime is 1539719123. The reversal of 1539719052 is 2509179351.

It is a tau number, because it is divible by the number of its divisors (12).

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 junction number, because it is equal to n+sod(n) for n = 1539718995 and 1539719013.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64154949 + ... + 64154972.

It is an arithmetic number, because the mean of its divisors is an integer number (299389818).

Almost surely, 2^1539719052 is an apocalyptic number.

1539719052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1539719052 is an abundant number, since it is smaller than the sum of its proper divisors (2052958764).

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

1539719052 is a wasteful number, since it uses less digits than its factorization.

1539719052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128309928 (or 128309926 counting only the distinct ones).

The product of its (nonzero) digits is 85050, while the sum is 42.

The square root of 1539719052 is about 39239.2539684434. The cubic root of 1539719052 is about 1154.7301211616.

The spelling of 1539719052 in words is "one billion, five hundred thirty-nine million, seven hundred nineteen thousand, fifty-two".