1630691133 has 4 divisors (see below), whose sum is σ = 2174254848. Its totient is φ = 1087127420.

The previous prime is 1630691113. The next prime is 1630691177. The reversal of 1630691133 is 3311960361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1630691133 - 2⁸ = 1630690877 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1630691094 and 1630691103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630691113) by changing a digit.

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, 271781853 + ... + 271781858.

It is an arithmetic number, because the mean of its divisors is an integer number (543563712).

Almost surely, 2^1630691133 is an apocalyptic number.

It is an amenable number.

1630691133 is a deficient number, since it is larger than the sum of its proper divisors (543563715).

1630691133 is an equidigital number, since it uses as much as digits as its factorization.

1630691133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543563714.

The product of its (nonzero) digits is 8748, while the sum is 33.

The square root of 1630691133 is about 40381.8168610577. The cubic root of 1630691133 is about 1177.0382327564.

The spelling of 1630691133 in words is "one billion, six hundred thirty million, six hundred ninety-one thousand, one hundred thirty-three".