47023139 has 8 divisors (see below), whose sum is σ = 49918320. Its totient is φ = 44142336.

The previous prime is 47023133. The next prime is 47023153. The reversal of 47023139 is 93132074.

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

It is not a de Polignac number, because 47023139 - 2²⁰ = 45974563 is a prime.

It is a super-2 number, since 2×47023139² = 4422351202826642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47023133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3572 + ... + 10334.

It is an arithmetic number, because the mean of its divisors is an integer number (6239790).

Almost surely, 2^47023139 is an apocalyptic number.

47023139 is a deficient number, since it is larger than the sum of its proper divisors (2895181).

47023139 is a wasteful number, since it uses less digits than its factorization.

47023139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7189.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 47023139 is about 6857.3419777637. The cubic root of 47023139 is about 360.9418214371.

The spelling of 47023139 in words is "forty-seven million, twenty-three thousand, one hundred thirty-nine".