130268381 has 4 divisors (see below), whose sum is σ = 131611452. Its totient is φ = 128925312.

The previous prime is 130268363. The next prime is 130268387. The reversal of 130268381 is 183862031.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 183862031 = 19 ⋅9676949.

It can be written as a sum of positive squares in 2 ways, for example, as 90060100 + 40208281 = 9490^2 + 6341^2 .

It is a cyclic number.

It is not a de Polignac number, because 130268381 - 2¹⁴ = 130251997 is a prime.

It is a super-2 number, since 2×130268381² = 33939702176722322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130268387) 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, 671390 + ... + 671583.

It is an arithmetic number, because the mean of its divisors is an integer number (32902863).

Almost surely, 2^130268381 is an apocalyptic number.

It is an amenable number.

130268381 is a deficient number, since it is larger than the sum of its proper divisors (1343071).

130268381 is an equidigital number, since it uses as much as digits as its factorization.

130268381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343070.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 130268381 is about 11413.5174683355. The cubic root of 130268381 is about 506.9280683585.

The spelling of 130268381 in words is "one hundred thirty million, two hundred sixty-eight thousand, three hundred eighty-one".