47131000 has 64 divisors (see below), whose sum is σ = 126060480. Its totient is φ = 16156800.

The previous prime is 47130983. The next prime is 47131009. The reversal of 47131000 is 13174.

It is a super-2 number, since 2×47131000² = 4442662322000000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47131009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3634 + ... + 10366.

It is an arithmetic number, because the mean of its divisors is an integer number (1969695).

Almost surely, 2^47131000 is an apocalyptic number.

47131000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47131000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63030240).

47131000 is an abundant number, since it is smaller than the sum of its proper divisors (78929480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47131000 is a wasteful number, since it uses less digits than its factorization.

47131000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6761 (or 6747 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 47131000 is about 6865.2021091880. The cubic root of 47131000 is about 361.2175850833.

Adding to 47131000 its reverse (13174), we get a palindrome (47144174).

The spelling of 47131000 in words is "forty-seven million, one hundred thirty-one thousand".