47131500 has 96 divisors (see below), whose sum is σ = 147865536. Its totient is φ = 11596800.

The previous prime is 47131499. The next prime is 47131519. The reversal of 47131500 is 513174.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18292 + ... + 20708.

It is an arithmetic number, because the mean of its divisors is an integer number (1540266).

Almost surely, 2^47131500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47131500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73932768).

47131500 is an abundant number, since it is smaller than the sum of its proper divisors (100734036).

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

47131500 is a wasteful number, since it uses less digits than its factorization.

47131500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2452 (or 2440 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 47131500 is about 6865.2385246253. The cubic root of 47131500 is about 361.2188624320.

Adding to 47131500 its reverse (513174), we get a palindrome (47644674).

The spelling of 47131500 in words is "forty-seven million, one hundred thirty-one thousand, five hundred".