1630913133 has 4 divisors (see below), whose sum is σ = 2174550848. Its totient is φ = 1087275420.

The previous prime is 1630913117. The next prime is 1630913143. The reversal of 1630913133 is 3313190361.

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 not a de Polignac number, because 1630913133 - 2⁴ = 1630913117 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 1630913133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630913143) 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, 271818853 + ... + 271818858.

It is an arithmetic number, because the mean of its divisors is an integer number (543637712).

Almost surely, 2^1630913133 is an apocalyptic number.

It is an amenable number.

1630913133 is a deficient number, since it is larger than the sum of its proper divisors (543637715).

1630913133 is an equidigital number, since it uses as much as digits as its factorization.

1630913133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543637714.

The product of its (nonzero) digits is 4374, while the sum is 30.

The square root of 1630913133 is about 40384.5655294198. The cubic root of 1630913133 is about 1177.0916437765.

The spelling of 1630913133 in words is "one billion, six hundred thirty million, nine hundred thirteen thousand, one hundred thirty-three".