1523000000 has 98 divisors (see below), whose sum is σ = 3780185988. Its totient is φ = 608800000.

The previous prime is 1522999991. The next prime is 1523000021. The reversal of 1523000000 is 3251.

It is an unprimeable number.

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 13 ways as a sum of consecutive naturals, for example, 999239 + ... + 1000761.

Almost surely, 2^1523000000 is an apocalyptic number.

1523000000 is a gapful number since it is divisible by the number (10) 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 1523000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1890092994).

1523000000 is an abundant number, since it is smaller than the sum of its proper divisors (2257185988).

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

1523000000 is an frugal number, since it uses more digits than its factorization.

1523000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565 (or 1530 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 1523000000 is about 39025.6326021757. The cubic root of 1523000000 is about 1150.5353525063.

Adding to 1523000000 its reverse (3251), we get a palindrome (1523003251).

The spelling of 1523000000 in words is "one billion, five hundred twenty-three million", and thus it is an aban number.