130136940 has 36 divisors (see below), whose sum is σ = 394749264. Its totient is φ = 34703136.

The previous prime is 130136939. The next prime is 130136959. The reversal of 130136940 is 49631031.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 361312 + ... + 361671.

Almost surely, 2^130136940 is an apocalyptic number.

130136940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130136940 is an abundant number, since it is smaller than the sum of its proper divisors (264612324).

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

130136940 is a wasteful number, since it uses less digits than its factorization.

130136940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722998 (or 722993 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 130136940 is about 11407.7578866314. The cubic root of 130136940 is about 506.7575139114.

Adding to 130136940 its reverse (49631031), we get a palindrome (179767971).

The spelling of 130136940 in words is "one hundred thirty million, one hundred thirty-six thousand, nine hundred forty".