131108551 has 8 divisors (see below), whose sum is σ = 149919264. Its totient is φ = 112318080.

The previous prime is 131108519. The next prime is 131108587. The reversal of 131108551 is 155801131.

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

It is not a de Polignac number, because 131108551 - 2⁵ = 131108519 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 (131108651) 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, 13251 + ... + 20923.

It is an arithmetic number, because the mean of its divisors is an integer number (18739908).

Almost surely, 2^131108551 is an apocalyptic number.

131108551 is a deficient number, since it is larger than the sum of its proper divisors (18810713).

131108551 is an equidigital number, since it uses as much as digits as its factorization.

131108551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10121.

The product of its (nonzero) digits is 600, while the sum is 25.

The square root of 131108551 is about 11450.2642327590. The cubic root of 131108551 is about 508.0155499301.

Adding to 131108551 its reverse (155801131), we get a palindrome (286909682).

The spelling of 131108551 in words is "one hundred thirty-one million, one hundred eight thousand, five hundred fifty-one".