1512081040 has 20 divisors (see below), whose sum is σ = 3515588604. Its totient is φ = 604832384.

The previous prime is 1512081037. The next prime is 1512081049. The reversal of 1512081040 is 401802151.

It can be written as a sum of positive squares in 2 ways, for example, as 1084253184 + 427827856 = 32928^2 + 20684^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (1512081049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9450427 + ... + 9450586.

Almost surely, 2^1512081040 is an apocalyptic number.

1512081040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1512081040 is an abundant number, since it is smaller than the sum of its proper divisors (2003507564).

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

1512081040 is a wasteful number, since it uses less digits than its factorization.

1512081040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18901026 (or 18901020 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 1512081040 is about 38885.4862384412. The cubic root of 1512081040 is about 1147.7792151097.

Adding to 1512081040 its reverse (401802151), we get a palindrome (1913883191).

The spelling of 1512081040 in words is "one billion, five hundred twelve million, eighty-one thousand, forty".