1531045012 has 12 divisors (see below), whose sum is σ = 3062090080. Its totient is φ = 656162136.

The previous prime is 1531044997. The next prime is 1531045037. The reversal of 1531045012 is 2105401351.

It is a happy number.

1531045012 is an admirable number.

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, 27340062 + ... + 27340117.

Almost surely, 2^1531045012 is an apocalyptic number.

It is an amenable number.

1531045012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1531045012 is a wasteful number, since it uses less digits than its factorization.

1531045012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54680190 (or 54680188 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1531045012 is about 39128.5702779951. The cubic root of 1531045012 is about 1152.5576375702.

Adding to 1531045012 its reverse (2105401351), we get a palindrome (3636446363).

The spelling of 1531045012 in words is "one billion, five hundred thirty-one million, forty-five thousand, twelve".