1539229512 has 16 divisors (see below), whose sum is σ = 3848073840. Its totient is φ = 513076496.

The previous prime is 1539229493. The next prime is 1539229513. The reversal of 1539229512 is 2159229351.

It is a super-2 number, since 2×1539229512² = 4738454981223516288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1539229513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32067258 + ... + 32067305.

It is an arithmetic number, because the mean of its divisors is an integer number (240504615).

Almost surely, 2^1539229512 is an apocalyptic number.

1539229512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1539229512 is an abundant number, since it is smaller than the sum of its proper divisors (2308844328).

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

1539229512 is a wasteful number, since it uses less digits than its factorization.

1539229512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64134572 (or 64134568 counting only the distinct ones).

The product of its digits is 48600, while the sum is 39.

The square root of 1539229512 is about 39233.0155863655. The cubic root of 1539229512 is about 1154.6077294602.

The spelling of 1539229512 in words is "one billion, five hundred thirty-nine million, two hundred twenty-nine thousand, five hundred twelve".