130007661 has 16 divisors (see below), whose sum is σ = 206721024. Its totient is φ = 71059824.

The previous prime is 130007639. The next prime is 130007681. The reversal of 130007661 is 166700031.

It is not a de Polignac number, because 130007661 - 2¹⁰ = 130006637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130007611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134101 + ... + 135066.

It is an arithmetic number, because the mean of its divisors is an integer number (12920064).

Almost surely, 2^130007661 is an apocalyptic number.

It is an amenable number.

130007661 is a deficient number, since it is larger than the sum of its proper divisors (76713363).

130007661 is a wasteful number, since it uses less digits than its factorization.

130007661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269200.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 130007661 is about 11402.0902031163. The cubic root of 130007661 is about 506.5896527585.

Adding to 130007661 its reverse (166700031), we get a palindrome (296707692).

The spelling of 130007661 in words is "one hundred thirty million, seven thousand, six hundred sixty-one".