130402243 has 4 divisors (see below), whose sum is σ = 130426240. Its totient is φ = 130378248.

The previous prime is 130402199. The next prime is 130402303. The reversal of 130402243 is 342204031.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130402243 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 130402243.

It is not an unprimeable number, because it can be changed into a prime (130402043) 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, 478 + ... + 16156.

It is an arithmetic number, because the mean of its divisors is an integer number (32606560).

Almost surely, 2^130402243 is an apocalyptic number.

130402243 is a deficient number, since it is larger than the sum of its proper divisors (23997).

130402243 is an equidigital number, since it uses as much as digits as its factorization.

130402243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23996.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 130402243 is about 11419.3801495528. The cubic root of 130402243 is about 507.1016463580.

Adding to 130402243 its reverse (342204031), we get a palindrome (472606274).

The spelling of 130402243 in words is "one hundred thirty million, four hundred two thousand, two hundred forty-three".