130641540 has 48 divisors (see below), whose sum is σ = 369583872. Its totient is φ = 34477056.

The previous prime is 130641503. The next prime is 130641547. The reversal of 130641540 is 45146031.

It is a self number, because there is not a number n which added to its sum of digits gives 130641540.

It is not an unprimeable number, because it can be changed into a prime (130641547) 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, 5404 + ... + 17043.

It is an arithmetic number, because the mean of its divisors is an integer number (7699664).

Almost surely, 2^130641540 is an apocalyptic number.

130641540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130641540 is an abundant number, since it is smaller than the sum of its proper divisors (238942332).

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

130641540 is a wasteful number, since it uses less digits than its factorization.

130641540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22556 (or 22554 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 130641540 is about 11429.8530174277. The cubic root of 130641540 is about 507.4116455017.

Adding to 130641540 its reverse (45146031), we get a palindrome (175787571).

The spelling of 130641540 in words is "one hundred thirty million, six hundred forty-one thousand, five hundred forty".