1320143464 has 8 divisors (see below), whose sum is σ = 2475269010. Its totient is φ = 660071728.

The previous prime is 1320143459. The next prime is 1320143471. The reversal of 1320143464 is 4643410231.

It can be written as a sum of positive squares in only one way, i.e., 884586564 + 435556900 = 29742^2 + 20870^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82508959 + ... + 82508974.

Almost surely, 2^1320143464 is an apocalyptic number.

It is an amenable number.

1320143464 is a deficient number, since it is larger than the sum of its proper divisors (1155125546).

1320143464 is a wasteful number, since it uses less digits than its factorization.

1320143464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165017939 (or 165017935 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 1320143464 is about 36333.7785538471. The cubic root of 1320143464 is about 1097.0010500715.

Adding to 1320143464 its reverse (4643410231), we get a palindrome (5963553695).

It can be divided in two parts, 13201 and 43464, that added together give a palindrome (56665).

The spelling of 1320143464 in words is "one billion, three hundred twenty million, one hundred forty-three thousand, four hundred sixty-four".