131004550 has 48 divisors (see below), whose sum is σ = 269259552. Its totient is φ = 47168000.

The previous prime is 131004547. The next prime is 131004569. The reversal of 131004550 is 55400131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16200 + ... + 22900.

It is an arithmetic number, because the mean of its divisors is an integer number (5609574).

Almost surely, 2^131004550 is an apocalyptic number.

131004550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131004550 is an abundant number, since it is smaller than the sum of its proper divisors (138255002).

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

131004550 is a wasteful number, since it uses less digits than its factorization.

131004550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6753 (or 6748 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 131004550 is about 11445.7219082066. The cubic root of 131004550 is about 507.8811877265.

Adding to 131004550 its reverse (55400131), we get a palindrome (186404681).

The spelling of 131004550 in words is "one hundred thirty-one million, four thousand, five hundred fifty".