3047129221 has 8 divisors (see below), whose sum is σ = 3148326144. Its totient is φ = 2946113760.

The previous prime is 3047129177. The next prime is 3047129231. The reversal of 3047129221 is 1229217403.

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

It is a cyclic number.

It is not a de Polignac number, because 3047129221 - 2⁹ = 3047128709 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3047129231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10795 + ... + 78808.

It is an arithmetic number, because the mean of its divisors is an integer number (393540768).

Almost surely, 2^3047129221 is an apocalyptic number.

3047129221 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3047129221 is a deficient number, since it is larger than the sum of its proper divisors (101196923).

3047129221 is a wasteful number, since it uses less digits than its factorization.

3047129221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90731.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 3047129221 is about 55200.8081553160. The cubic root of 3047129221 is about 1449.7628182804.

The spelling of 3047129221 in words is "three billion, forty-seven million, one hundred twenty-nine thousand, two hundred twenty-one".