130692720 has 80 divisors (see below), whose sum is σ = 406259712. Its totient is φ = 34755840.

The previous prime is 130692701. The next prime is 130692791. The reversal of 130692720 is 27296031.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151009 + ... + 151871.

Almost surely, 2^130692720 is an apocalyptic number.

130692720 is a gapful number since it is divisible by the number (10) 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 130692720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203129856).

130692720 is an abundant number, since it is smaller than the sum of its proper divisors (275566992).

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

130692720 is a wasteful number, since it uses less digits than its factorization.

130692720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1510 (or 1504 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 130692720 is about 11432.0916721307. The cubic root of 130692720 is about 507.4778978783.

The spelling of 130692720 in words is "one hundred thirty million, six hundred ninety-two thousand, seven hundred twenty".