130939956 has 144 divisors (see below), whose sum is σ = 400276800. Its totient is φ = 36904896.

The previous prime is 130939951. The next prime is 130939961. The reversal of 130939956 is 659939031.

It is an interprime number because it is at equal distance from previous prime (130939951) and next prime (130939961).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130939951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 576715 + ... + 576941.

It is an arithmetic number, because the mean of its divisors is an integer number (2779700).

Almost surely, 2^130939956 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 130939956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200138400).

130939956 is an abundant number, since it is smaller than the sum of its proper divisors (269336844).

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

130939956 is a wasteful number, since it uses less digits than its factorization.

130939956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363 (or 348 counting only the distinct ones).

The product of its (nonzero) digits is 196830, while the sum is 45.

The square root of 130939956 is about 11442.8998073041. The cubic root of 130939956 is about 507.7977008787.

The spelling of 130939956 in words is "one hundred thirty million, nine hundred thirty-nine thousand, nine hundred fifty-six".