1530631130 has 72 divisors (see below), whose sum is σ = 3249869364. Its totient is φ = 517507200.

The previous prime is 1530631111. The next prime is 1530631153. The reversal of 1530631130 is 311360351.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1529513881 + 1117249 = 39109^2 + 1057^2 .

It is a super-2 number, since 2×1530631130² = 4685663312250153800, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1530631096 and 1530631105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 10136555 + ... + 10136705.

Almost surely, 2^1530631130 is an apocalyptic number.

1530631130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1530631130 is an abundant number, since it is smaller than the sum of its proper divisors (1719238234).

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

1530631130 is a wasteful number, since it uses less digits than its factorization.

1530631130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460 (or 302 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 1530631130 is about 39123.2811763022. The cubic root of 1530631130 is about 1152.4537725963.

Adding to 1530631130 its reverse (311360351), we get a palindrome (1841991481).

The spelling of 1530631130 in words is "one billion, five hundred thirty million, six hundred thirty-one thousand, one hundred thirty".