47489131 has 12 divisors (see below), whose sum is σ = 49215600. Its totient is φ = 45811920.

The previous prime is 47489119. The next prime is 47489173. The reversal of 47489131 is 13198474.

It is not a de Polignac number, because 47489131 - 2¹⁹ = 46964843 is a prime.

It is a super-2 number, since 2×47489131² = 4510435126270322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47489731) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 318645 + ... + 318793.

It is an arithmetic number, because the mean of its divisors is an integer number (4101300).

Almost surely, 2^47489131 is an apocalyptic number.

47489131 is a deficient number, since it is larger than the sum of its proper divisors (1726469).

47489131 is an equidigital number, since it uses as much as digits as its factorization.

47489131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354 (or 287 counting only the distinct ones).

The product of its digits is 24192, while the sum is 37.

The square root of 47489131 is about 6891.2358107962. The cubic root of 47489131 is about 362.1301969535.

The spelling of 47489131 in words is "forty-seven million, four hundred eighty-nine thousand, one hundred thirty-one".