130665288 has 32 divisors (see below), whose sum is σ = 351792000. Its totient is φ = 40204608.

The previous prime is 130665287. The next prime is 130665307. The reversal of 130665288 is 882566031.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (130665287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209088 + ... + 209711.

It is an arithmetic number, because the mean of its divisors is an integer number (10993500).

Almost surely, 2^130665288 is an apocalyptic number.

It is an amenable number.

130665288 is an abundant number, since it is smaller than the sum of its proper divisors (221126712).

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

130665288 is a wasteful number, since it uses less digits than its factorization.

130665288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418821 (or 418817 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 130665288 is about 11430.8918287245. The cubic root of 130665288 is about 507.4423893771.

The spelling of 130665288 in words is "one hundred thirty million, six hundred sixty-five thousand, two hundred eighty-eight".