131755505 has 8 divisors (see below), whose sum is σ = 180693312. Its totient is φ = 90346608.

The previous prime is 131755501. The next prime is 131755517. The reversal of 131755505 is 505557131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131755505 - 2² = 131755501 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131755501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1882187 + ... + 1882256.

It is an arithmetic number, because the mean of its divisors is an integer number (22586664).

Almost surely, 2^131755505 is an apocalyptic number.

It is an amenable number.

131755505 is a deficient number, since it is larger than the sum of its proper divisors (48937807).

131755505 is an equidigital number, since it uses as much as digits as its factorization.

131755505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3764455.

The product of its (nonzero) digits is 13125, while the sum is 32.

The square root of 131755505 is about 11478.4800823105. The cubic root of 131755505 is about 508.8497786978.

The spelling of 131755505 in words is "one hundred thirty-one million, seven hundred fifty-five thousand, five hundred five".