131235105 has 8 divisors (see below), whose sum is σ = 209976192. Its totient is φ = 69992048.

The previous prime is 131235101. The next prime is 131235107. The reversal of 131235105 is 501532131.

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

It is a cyclic number.

It is not a de Polignac number, because 131235105 - 2² = 131235101 is a prime.

It is a super-2 number, since 2×131235105² = 34445305568722050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131235101) 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, 4374489 + ... + 4374518.

It is an arithmetic number, because the mean of its divisors is an integer number (26247024).

Almost surely, 2^131235105 is an apocalyptic number.

131235105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131235105 is a deficient number, since it is larger than the sum of its proper divisors (78741087).

131235105 is an equidigital number, since it uses as much as digits as its factorization.

131235105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8749015.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 131235105 is about 11455.7891478501. The cubic root of 131235105 is about 508.1789532691.

Adding to 131235105 its reverse (501532131), we get a palindrome (632767236).

The spelling of 131235105 in words is "one hundred thirty-one million, two hundred thirty-five thousand, one hundred five".