1331073530 has 8 divisors (see below), whose sum is σ = 2395932372. Its totient is φ = 532429408.

The previous prime is 1331073467. The next prime is 1331073539. The reversal of 1331073530 is 353701331.

It can be written as a sum of positive squares in 2 ways, for example, as 1225210009 + 105863521 = 35003^2 + 10289^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1331073530.

It is not an unprimeable number, because it can be changed into a prime (1331073539) 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, 66553667 + ... + 66553686.

Almost surely, 2^1331073530 is an apocalyptic number.

1331073530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1331073530 is a deficient number, since it is larger than the sum of its proper divisors (1064858842).

1331073530 is a wasteful number, since it uses less digits than its factorization.

1331073530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133107360.

The product of its (nonzero) digits is 2835, while the sum is 26.

The square root of 1331073530 is about 36483.8804131359. The cubic root of 1331073530 is about 1100.0202558253.

Adding to 1331073530 its reverse (353701331), we get a palindrome (1684774861).

The spelling of 1331073530 in words is "one billion, three hundred thirty-one million, seventy-three thousand, five hundred thirty".