1331234265 has 8 divisors (see below), whose sum is σ = 2129974848. Its totient is φ = 709991600.

The previous prime is 1331234239. The next prime is 1331234327. The reversal of 1331234265 is 5624321331.

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

It is not a de Polignac number, because 1331234265 - 2⁹ = 1331233753 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44374461 + ... + 44374490.

It is an arithmetic number, because the mean of its divisors is an integer number (266246856).

Almost surely, 2^1331234265 is an apocalyptic number.

1331234265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1331234265 is a deficient number, since it is larger than the sum of its proper divisors (798740583).

1331234265 is an equidigital number, since it uses as much as digits as its factorization.

1331234265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88748959.

The product of its digits is 12960, while the sum is 30.

The square root of 1331234265 is about 36486.0831687919. The cubic root of 1331234265 is about 1100.0645320268.

Adding to 1331234265 its reverse (5624321331), we get a palindrome (6955555596).

The spelling of 1331234265 in words is "one billion, three hundred thirty-one million, two hundred thirty-four thousand, two hundred sixty-five".