1320145133 has 8 divisors (see below), whose sum is σ = 1338469440. Its totient is φ = 1301947200.

The previous prime is 1320145121. The next prime is 1320145139. The reversal of 1320145133 is 3315410231.

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

It is a cyclic number.

It is not a de Polignac number, because 1320145133 - 2²⁶ = 1253036269 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1320145099 and 1320145108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320145139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10460 + ... + 52437.

It is an arithmetic number, because the mean of its divisors is an integer number (167308680).

Almost surely, 2^1320145133 is an apocalyptic number.

It is an amenable number.

1320145133 is a deficient number, since it is larger than the sum of its proper divisors (18324307).

1320145133 is a wasteful number, since it uses less digits than its factorization.

1320145133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63187.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 1320145133 is about 36333.8015214483. The cubic root of 1320145133 is about 1097.0015123682.

Adding to 1320145133 its reverse (3315410231), we get a palindrome (4635555364).

The spelling of 1320145133 in words is "one billion, three hundred twenty million, one hundred forty-five thousand, one hundred thirty-three".