130623636 has 96 divisors (see below), whose sum is σ = 361041408. Its totient is φ = 36236160.

The previous prime is 130623617. The next prime is 130623659. The reversal of 130623636 is 636326031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 279475 + ... + 279941.

It is an arithmetic number, because the mean of its divisors is an integer number (3760848).

Almost surely, 2^130623636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130623636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180520704).

130623636 is an abundant number, since it is smaller than the sum of its proper divisors (230417772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130623636 is a wasteful number, since it uses less digits than its factorization.

130623636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661 (or 659 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 30.

The square root of 130623636 is about 11429.0697784203. The cubic root of 130623636 is about 507.3884647351.

Adding to 130623636 its reverse (636326031), we get a palindrome (766949667).

It can be divided in two parts, 1306 and 23636, that added together give a palindrome (24942).

The spelling of 130623636 in words is "one hundred thirty million, six hundred twenty-three thousand, six hundred thirty-six".