1330368761 has 4 divisors (see below), whose sum is σ = 1333994112. Its totient is φ = 1326743412.

The previous prime is 1330368749. The next prime is 1330368763. The reversal of 1330368761 is 1678630331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1330368761 - 2¹⁴ = 1330352377 is a prime.

It is a super-3 number, since 3×1330368761³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1330368763) 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, 1812125 + ... + 1812858.

It is an arithmetic number, because the mean of its divisors is an integer number (333498528).

Almost surely, 2^1330368761 is an apocalyptic number.

It is an amenable number.

1330368761 is a deficient number, since it is larger than the sum of its proper divisors (3625351).

1330368761 is an equidigital number, since it uses as much as digits as its factorization.

1330368761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3625350.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 1330368761 is about 36474.2204988674. The cubic root of 1330368761 is about 1099.8260774610.

The spelling of 1330368761 in words is "one billion, three hundred thirty million, three hundred sixty-eight thousand, seven hundred sixty-one".