131774827 has 4 divisors (see below), whose sum is σ = 131813136. Its totient is φ = 131736520.

The previous prime is 131774821. The next prime is 131774849. The reversal of 131774827 is 728477131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 728477131 = 67 ⋅10872793.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131774827 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131774827.

It is not an unprimeable number, because it can be changed into a prime (131774821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13423 + ... + 21064.

It is an arithmetic number, because the mean of its divisors is an integer number (32953284).

Almost surely, 2^131774827 is an apocalyptic number.

131774827 is a deficient number, since it is larger than the sum of its proper divisors (38309).

131774827 is an equidigital number, since it uses as much as digits as its factorization.

131774827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38308.

The product of its digits is 65856, while the sum is 40.

The square root of 131774827 is about 11479.3217134115. The cubic root of 131774827 is about 508.8746518264.

The spelling of 131774827 in words is "one hundred thirty-one million, seven hundred seventy-four thousand, eight hundred twenty-seven".