47630181 has 8 divisors (see below), whose sum is σ = 63626464. Its totient is φ = 31693680.

The previous prime is 47630161. The next prime is 47630213. The reversal of 47630181 is 18103674.

It is a happy number.

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

It is not a de Polignac number, because 47630181 - 2⁶ = 47630117 is a prime.

It is a super-2 number, since 2×47630181² = 4537268284185522, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47630101) 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, 13051 + ... + 16296.

It is an arithmetic number, because the mean of its divisors is an integer number (7953308).

Almost surely, 2^47630181 is an apocalyptic number.

It is an amenable number.

47630181 is a deficient number, since it is larger than the sum of its proper divisors (15996283).

47630181 is a wasteful number, since it uses less digits than its factorization.

47630181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29891.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 47630181 is about 6901.4622363670. The cubic root of 47630181 is about 362.4883699796.

The spelling of 47630181 in words is "forty-seven million, six hundred thirty thousand, one hundred eighty-one".