130891024 has 120 divisors (see below), whose sum is σ = 305464824. Its totient is φ = 54067200.

The previous prime is 130891003. The next prime is 130891037. The reversal of 130891024 is 420198031.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6969600 + 123921424 = 2640^2 + 11132^2 .

It is a junction number, because it is equal to n+sod(n) for n = 130890983 and 130891001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1349344 + ... + 1349440.

Almost surely, 2^130891024 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 130891024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152732412).

130891024 is an abundant number, since it is smaller than the sum of its proper divisors (174573800).

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

130891024 is a wasteful number, since it uses less digits than its factorization.

130891024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 130891024 is about 11440.7615131162. The cubic root of 130891024 is about 507.7344386689.

The spelling of 130891024 in words is "one hundred thirty million, eight hundred ninety-one thousand, twenty-four".