131504130 has 96 divisors (see below), whose sum is σ = 366949440. Its totient is φ = 32572800.

The previous prime is 131504099. The next prime is 131504159. The reversal of 131504130 is 31405131.

131504130 is a `hidden beast` number, since 1 + 31 + 504 + 130 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 89905 + ... + 91355.

It is an arithmetic number, because the mean of its divisors is an integer number (3822390).

Almost surely, 2^131504130 is an apocalyptic number.

131504130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 131504130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183474720).

131504130 is an abundant number, since it is smaller than the sum of its proper divisors (235445310).

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

131504130 is a wasteful number, since it uses less digits than its factorization.

131504130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1536 (or 1533 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 131504130 is about 11467.5250163233. The cubic root of 131504130 is about 508.5259628875.

Adding to 131504130 its reverse (31405131), we get a palindrome (162909261).

The spelling of 131504130 in words is "one hundred thirty-one million, five hundred four thousand, one hundred thirty".