1331541512 has 32 divisors (see below), whose sum is σ = 2945349120. Its totient is φ = 552251520.

The previous prime is 1331541511. The next prime is 1331541517. The reversal of 1331541512 is 2151451331.

It is a super-2 number, since 2×1331541512² = 3546005596358492288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1331541511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381773 + ... + 385244.

It is an arithmetic number, because the mean of its divisors is an integer number (92042160).

Almost surely, 2^1331541512 is an apocalyptic number.

It is an amenable number.

1331541512 is an abundant number, since it is smaller than the sum of its proper divisors (1613807608).

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

1331541512 is a wasteful number, since it uses less digits than its factorization.

1331541512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767061 (or 767057 counting only the distinct ones).

The product of its digits is 1800, while the sum is 26.

The square root of 1331541512 is about 36490.2933942713. The cubic root of 1331541512 is about 1100.1491566334.

Adding to 1331541512 its reverse (2151451331), we get a palindrome (3482992843).

The spelling of 1331541512 in words is "one billion, three hundred thirty-one million, five hundred forty-one thousand, five hundred twelve".