131159787 has 8 divisors (see below), whose sum is σ = 190777920. Its totient is φ = 79490760.

The previous prime is 131159737. The next prime is 131159797. The reversal of 131159787 is 787951131.

It is a happy number.

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

It is not a de Polignac number, because 131159787 - 2⁸ = 131159531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131159737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1987237 + ... + 1987302.

It is an arithmetic number, because the mean of its divisors is an integer number (23847240).

Almost surely, 2^131159787 is an apocalyptic number.

131159787 is a deficient number, since it is larger than the sum of its proper divisors (59618133).

131159787 is a wasteful number, since it uses less digits than its factorization.

131159787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3974553.

The product of its digits is 52920, while the sum is 42.

The square root of 131159787 is about 11452.5013425016. The cubic root of 131159787 is about 508.0817172260.

The spelling of 131159787 in words is "one hundred thirty-one million, one hundred fifty-nine thousand, seven hundred eighty-seven".