131684255 has 4 divisors (see below), whose sum is σ = 158021112. Its totient is φ = 105347400.

The previous prime is 131684243. The next prime is 131684257. The reversal of 131684255 is 552486131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 552486131 = 1951 ⋅283181.

It is not a de Polignac number, because 131684255 - 2⁶ = 131684191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131684257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13168421 + ... + 13168430.

It is an arithmetic number, because the mean of its divisors is an integer number (39505278).

Almost surely, 2^131684255 is an apocalyptic number.

131684255 is a deficient number, since it is larger than the sum of its proper divisors (26336857).

131684255 is an equidigital number, since it uses as much as digits as its factorization.

131684255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26336856.

The product of its digits is 28800, while the sum is 35.

The square root of 131684255 is about 11475.3760286973. The cubic root of 131684255 is about 508.7580378529.

The spelling of 131684255 in words is "one hundred thirty-one million, six hundred eighty-four thousand, two hundred fifty-five".