1523525130 has 24 divisors (see below), whose sum is σ = 3961165572. Its totient is φ = 406273344.

The previous prime is 1523525053. The next prime is 1523525137. The reversal of 1523525130 is 315253251.

It is a happy number.

1523525130 is a `hidden beast` number, since 1 + 5 + 2 + 3 + 525 + 130 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1463292009 + 60233121 = 38253^2 + 7761^2 .

It is a super-2 number, since 2×1523525130² = 4642257643483033800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1523525094 and 1523525103.

It is not an unprimeable number, because it can be changed into a prime (1523525137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8463939 + ... + 8464118.

Almost surely, 2^1523525130 is an apocalyptic number.

1523525130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1523525130 is an abundant number, since it is smaller than the sum of its proper divisors (2437640442).

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

1523525130 is a wasteful number, since it uses less digits than its factorization.

1523525130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16928070 (or 16928067 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 1523525130 is about 39032.3600362571. The cubic root of 1523525130 is about 1150.6675720735.

Adding to 1523525130 its reverse (315253251), we get a palindrome (1838778381).

The spelling of 1523525130 in words is "one billion, five hundred twenty-three million, five hundred twenty-five thousand, one hundred thirty".