1013133145 has 4 divisors (see below), whose sum is σ = 1215759780. Its totient is φ = 810506512.

The previous prime is 1013133131. The next prime is 1013133179. The reversal of 1013133145 is 5413313101.

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 614891209 + 398241936 = 24797^2 + 19956^2 .

It is a cyclic number.

It is not a de Polignac number, because 1013133145 - 2²³ = 1004744537 is a prime.

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 in 3 ways as a sum of consecutive naturals, for example, 101313310 + ... + 101313319.

It is an arithmetic number, because the mean of its divisors is an integer number (303939945).

Almost surely, 2^1013133145 is an apocalyptic number.

It is an amenable number.

1013133145 is a deficient number, since it is larger than the sum of its proper divisors (202626635).

1013133145 is an equidigital number, since it uses as much as digits as its factorization.

1013133145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202626634.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 1013133145 is about 31829.7525123900. The cubic root of 1013133145 is about 1004.3586892259.

Adding to 1013133145 its reverse (5413313101), we get a palindrome (6426446246).

The spelling of 1013133145 in words is "one billion, thirteen million, one hundred thirty-three thousand, one hundred forty-five".