130145928 has 64 divisors (see below), whose sum is σ = 355968000. Its totient is φ = 39324480.

The previous prime is 130145927. The next prime is 130145929. The reversal of 130145928 is 829541031.

It is an interprime number because it is at equal distance from previous prime (130145927) and next prime (130145929).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (130145921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157725 + ... + 158547.

It is an arithmetic number, because the mean of its divisors is an integer number (5562000).

Almost surely, 2^130145928 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 130145928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177984000).

130145928 is an abundant number, since it is smaller than the sum of its proper divisors (225822072).

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

130145928 is a wasteful number, since it uses less digits than its factorization.

130145928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442 (or 1438 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 130145928 is about 11408.1518222717. The cubic root of 130145928 is about 506.7691801651.

Adding to 130145928 its reverse (829541031), we get a palindrome (959686959).

The spelling of 130145928 in words is "one hundred thirty million, one hundred forty-five thousand, nine hundred twenty-eight".