130742 has 4 divisors (see below), whose sum is σ = 196116. Its totient is φ = 65370.

The previous prime is 130729. The next prime is 130769. The reversal of 130742 is 247031.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 130742.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 130742.

It is an unprimeable number.

130742 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32684 + ... + 32687.

It is an arithmetic number, because the mean of its divisors is an integer number (49029).

2¹³⁰⁷⁴² is an apocalyptic number.

130742 is a deficient number, since it is larger than the sum of its proper divisors (65374).

130742 is an equidigital number, since it uses as much as digits as its factorization.

130742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65373.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 130742 is about 361.5826323263. The cubic root of 130742 is about 50.7541674367.

Adding to 130742 its reverse (247031), we get a palindrome (377773).

The spelling of 130742 in words is "one hundred thirty thousand, seven hundred forty-two".