1531130036 has 12 divisors (see below), whose sum is σ = 2698755360. Its totient is φ = 760057080.

The previous prime is 1531130009. The next prime is 1531130057. The reversal of 1531130036 is 6300311351.

It is a happy number.

It is a super-2 number, since 2×1531130036² = 4688718374282722592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1531129993 and 1531130020.

It is a congruent number.

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, 1376360 + ... + 1377471.

It is an arithmetic number, because the mean of its divisors is an integer number (224896280).

Almost surely, 2^1531130036 is an apocalyptic number.

It is an amenable number.

1531130036 is a deficient number, since it is larger than the sum of its proper divisors (1167625324).

1531130036 is a wasteful number, since it uses less digits than its factorization.

1531130036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2753974 (or 2753972 counting only the distinct ones).

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

The square root of 1531130036 is about 39129.6567324581. The cubic root of 1531130036 is about 1152.5789722895.

Adding to 1531130036 its reverse (6300311351), we get a palindrome (7831441387).

The spelling of 1531130036 in words is "one billion, five hundred thirty-one million, one hundred thirty thousand, thirty-six".