131887011 has 4 divisors (see below), whose sum is σ = 175849352. Its totient is φ = 87924672.

The previous prime is 131886971. The next prime is 131887033. The reversal of 131887011 is 110788131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110788131 = 3 ⋅36929377.

It is not a de Polignac number, because 131887011 - 2⁶ = 131886947 is a prime.

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 131887011.

It is not an unprimeable number, because it can be changed into a prime (131887061) 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, 21981166 + ... + 21981171.

It is an arithmetic number, because the mean of its divisors is an integer number (43962338).

Almost surely, 2^131887011 is an apocalyptic number.

131887011 is a deficient number, since it is larger than the sum of its proper divisors (43962341).

131887011 is an equidigital number, since it uses as much as digits as its factorization.

131887011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43962340.

The product of its (nonzero) digits is 1344, while the sum is 30.

The square root of 131887011 is about 11484.2070253022. The cubic root of 131887011 is about 509.0190177946.

The spelling of 131887011 in words is "one hundred thirty-one million, eight hundred eighty-seven thousand, eleven".