130742221 has 8 divisors (see below), whose sum is σ = 135824384. Its totient is φ = 125714160.

The previous prime is 130742191. The next prime is 130742303. The reversal of 130742221 is 122247031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130742221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130742192 and 130742201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130740221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8565 + ... + 18298.

It is an arithmetic number, because the mean of its divisors is an integer number (16978048).

Almost surely, 2^130742221 is an apocalyptic number.

It is an amenable number.

130742221 is a deficient number, since it is larger than the sum of its proper divisors (5082163).

130742221 is a wasteful number, since it uses less digits than its factorization.

130742221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27051.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 130742221 is about 11434.2564690495. The cubic root of 130742221 is about 507.5419603411.

Adding to 130742221 its reverse (122247031), we get a palindrome (252989252).

The spelling of 130742221 in words is "one hundred thirty million, seven hundred forty-two thousand, two hundred twenty-one".