131501132505 has 32 divisors (see below), whose sum is σ = 233992005120. Its totient is φ = 70070273280.

The previous prime is 131501132491. The next prime is 131501132549. The reversal of 131501132505 is 505231105131.

131501132505 is a `hidden beast` number, since 1 + 3 + 150 + 1 + 1 + 3 + 2 + 505 = 666.

It is not a de Polignac number, because 131501132505 - 2⁵ = 131501132473 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 292656 + ... + 590465.

It is an arithmetic number, because the mean of its divisors is an integer number (7312250160).

Almost surely, 2^131501132505 is an apocalyptic number.

131501132505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131501132505 is a deficient number, since it is larger than the sum of its proper divisors (102490872615).

131501132505 is a wasteful number, since it uses less digits than its factorization.

131501132505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884238 (or 884232 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 27.

Adding to 131501132505 its reverse (505231105131), we get a palindrome (636732237636).

The spelling of 131501132505 in words is "one hundred thirty-one billion, five hundred one million, one hundred thirty-two thousand, five hundred five".