1330167961 has 4 divisors (see below), whose sum is σ = 1362611124. Its totient is φ = 1297724800.

The previous prime is 1330167919. The next prime is 1330167983. The reversal of 1330167961 is 1697610331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 746655625 + 583512336 = 27325^2 + 24156^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1330167961 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1330167961.

It is not an unprimeable number, because it can be changed into a prime (1330167061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16221520 + ... + 16221601.

It is an arithmetic number, because the mean of its divisors is an integer number (340652781).

Almost surely, 2^1330167961 is an apocalyptic number.

It is an amenable number.

1330167961 is a deficient number, since it is larger than the sum of its proper divisors (32443163).

1330167961 is an equidigital number, since it uses as much as digits as its factorization.

1330167961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32443162.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 1330167961 is about 36471.4677659126. The cubic root of 1330167961 is about 1099.7707403758.

The spelling of 1330167961 in words is "one billion, three hundred thirty million, one hundred sixty-seven thousand, nine hundred sixty-one".