47980139 has 8 divisors (see below), whose sum is σ = 50512032. Its totient is φ = 45485440.

The previous prime is 47980133. The next prime is 47980183. The reversal of 47980139 is 93108974.

It is a happy number.

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 47980139 - 2¹² = 47976043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47980096 and 47980105.

It is not an unprimeable number, because it can be changed into a prime (47980133) 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, 6632 + ... + 11829.

It is an arithmetic number, because the mean of its divisors is an integer number (6314004).

Almost surely, 2^47980139 is an apocalyptic number.

47980139 is a deficient number, since it is larger than the sum of its proper divisors (2531893).

47980139 is a wasteful number, since it uses less digits than its factorization.

47980139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18597.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 47980139 is about 6926.7697377638. The cubic root of 47980139 is about 363.3739868847.

The spelling of 47980139 in words is "forty-seven million, nine hundred eighty thousand, one hundred thirty-nine".