131550 has 24 divisors (see below), whose sum is σ = 326616. Its totient is φ = 35040.

The previous prime is 131543. The next prime is 131561. The reversal of 131550 is 55131.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

131550 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 289 + ... + 588.

It is an arithmetic number, because the mean of its divisors is an integer number (13609).

2¹³¹⁵⁵⁰ is an apocalyptic number.

131550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131550 is an abundant number, since it is smaller than the sum of its proper divisors (195066).

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

131550 is a wasteful number, since it uses less digits than its factorization.

131550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892 (or 887 counting only the distinct ones).

The product of its (nonzero) digits is 75, while the sum is 15.

The square root of 131550 is about 362.6982216664. The cubic root of 131550 is about 50.8585082385.

Adding to 131550 its reverse (55131), we get a palindrome (186681).

The spelling of 131550 in words is "one hundred thirty-one thousand, five hundred fifty".