130161444 has 72 divisors (see below), whose sum is σ = 355537728. Its totient is φ = 36953280.

The previous prime is 130161433. The next prime is 130161491. The reversal of 130161444 is 444161031.

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, 105817 + ... + 107039.

It is an arithmetic number, because the mean of its divisors is an integer number (4938024).

Almost surely, 2^130161444 is an apocalyptic number.

130161444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130161444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177768864).

130161444 is an abundant number, since it is smaller than the sum of its proper divisors (225376284).

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

130161444 is a wasteful number, since it uses less digits than its factorization.

130161444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1425 (or 1416 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 130161444 is about 11408.8318420424. The cubic root of 130161444 is about 506.7893183752.

The spelling of 130161444 in words is "one hundred thirty million, one hundred sixty-one thousand, four hundred forty-four".