1350133021 has 4 divisors (see below), whose sum is σ = 1350438012. Its totient is φ = 1349828032.

The previous prime is 1350133007. The next prime is 1350133033. The reversal of 1350133021 is 1203310531.

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 1210065796 + 140067225 = 34786^2 + 11835^2 .

It is a cyclic number.

It is not a de Polignac number, because 1350133021 - 2²⁵ = 1316578589 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 1350133021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1350133061) 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, 145756 + ... + 154741.

It is an arithmetic number, because the mean of its divisors is an integer number (337609503).

Almost surely, 2^1350133021 is an apocalyptic number.

It is an amenable number.

1350133021 is a deficient number, since it is larger than the sum of its proper divisors (304991).

1350133021 is an equidigital number, since it uses as much as digits as its factorization.

1350133021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304990.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 1350133021 is about 36744.1562836868. The cubic root of 1350133021 is about 1105.2457486632.

Adding to 1350133021 its reverse (1203310531), we get a palindrome (2553443552).

The spelling of 1350133021 in words is "one billion, three hundred fifty million, one hundred thirty-three thousand, twenty-one".