130665722 has 24 divisors (see below), whose sum is σ = 221274228. Its totient is φ = 57784320.

The previous prime is 130665683. The next prime is 130665727. The reversal of 130665722 is 227566031.

It can be written as a sum of positive squares in 2 ways, for example, as 130622041 + 43681 = 11429^2 + 209^2 .

It is not an unprimeable number, because it can be changed into a prime (130665727) 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 11 ways as a sum of consecutive naturals, for example, 1658 + ... + 16250.

Almost surely, 2^130665722 is an apocalyptic number.

130665722 is a deficient number, since it is larger than the sum of its proper divisors (90608506).

130665722 is a wasteful number, since it uses less digits than its factorization.

130665722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14654 (or 14643 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 130665722 is about 11430.9108123544. The cubic root of 130665722 is about 507.4429511936.

The spelling of 130665722 in words is "one hundred thirty million, six hundred sixty-five thousand, seven hundred twenty-two".