1331043245 has 32 divisors (see below), whose sum is σ = 1862265600. Its totient is φ = 894398976.

The previous prime is 1331043227. The next prime is 1331043251. The reversal of 1331043245 is 5423401331.

1331043245 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 1331043245 - 2¹⁰ = 1331042221 is a prime.

It is a super-2 number, since 2×1331043245² = 3543352240120260050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 802457 + ... + 804113.

It is an arithmetic number, because the mean of its divisors is an integer number (58195800).

Almost surely, 2^1331043245 is an apocalyptic number.

It is an amenable number.

1331043245 is a deficient number, since it is larger than the sum of its proper divisors (531222355).

1331043245 is a wasteful number, since it uses less digits than its factorization.

1331043245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2117.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 1331043245 is about 36483.4653644634. The cubic root of 1331043245 is about 1100.0119130941.

Adding to 1331043245 its reverse (5423401331), we get a palindrome (6754444576).

The spelling of 1331043245 in words is "one billion, three hundred thirty-one million, forty-three thousand, two hundred forty-five".