1630520133 has 48 divisors (see below), whose sum is σ = 2547292608. Its totient is φ = 923788800.

The previous prime is 1630520123. The next prime is 1630520137. The reversal of 1630520133 is 3310250361.

It is a happy number.

It is not a de Polignac number, because 1630520133 - 2⁶ = 1630520069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630520137) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1005063 + ... + 1006683.

It is an arithmetic number, because the mean of its divisors is an integer number (53068596).

Almost surely, 2^1630520133 is an apocalyptic number.

It is an amenable number.

1630520133 is a deficient number, since it is larger than the sum of its proper divisors (916772475).

1630520133 is a wasteful number, since it uses less digits than its factorization.

1630520133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1826 (or 1815 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 1630520133 is about 40379.6995159697. The cubic root of 1630520133 is about 1176.9970885304.

Adding to 1630520133 its reverse (3310250361), we get a palindrome (4940770494).

The spelling of 1630520133 in words is "one billion, six hundred thirty million, five hundred twenty thousand, one hundred thirty-three".