130188001 has 4 divisors (see below), whose sum is σ = 130438404. Its totient is φ = 129937600.

The previous prime is 130187977. The next prime is 130188017. The reversal of 130188001 is 100881031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 68973025 + 61214976 = 8305^2 + 7824^2 .

It is a cyclic number.

It is not a de Polignac number, because 130188001 - 2⁹ = 130187489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130188031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124420 + ... + 125461.

It is an arithmetic number, because the mean of its divisors is an integer number (32609601).

Almost surely, 2^130188001 is an apocalyptic number.

It is an amenable number.

130188001 is a deficient number, since it is larger than the sum of its proper divisors (250403).

130188001 is an equidigital number, since it uses as much as digits as its factorization.

130188001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250402.

The product of its (nonzero) digits is 192, while the sum is 22.

The square root of 130188001 is about 11409.9956616994. The cubic root of 130188001 is about 506.8237829813.

The spelling of 130188001 in words is "one hundred thirty million, one hundred eighty-eight thousand, one".