1331145435 has 16 divisors (see below), whose sum is σ = 2130460416. Its totient is φ = 709735008.

The previous prime is 1331145397. The next prime is 1331145457. The reversal of 1331145435 is 5345411331.

It is not a de Polignac number, because 1331145435 - 2¹⁰ = 1331144411 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49032 + ... + 71178.

It is an arithmetic number, because the mean of its divisors is an integer number (133153776).

Almost surely, 2^1331145435 is an apocalyptic number.

1331145435 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1331145435 is a deficient number, since it is larger than the sum of its proper divisors (799314981).

1331145435 is a wasteful number, since it uses less digits than its factorization.

1331145435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26162.

The product of its digits is 10800, while the sum is 30.

The square root of 1331145435 is about 36484.8658350281. The cubic root of 1331145435 is about 1100.0400632791.

Adding to 1331145435 its reverse (5345411331), we get a palindrome (6676556766).

The spelling of 1331145435 in words is "one billion, three hundred thirty-one million, one hundred forty-five thousand, four hundred thirty-five".