131207105 has 16 divisors (see below), whose sum is σ = 169205760. Its totient is φ = 97312512.

The previous prime is 131207101. The next prime is 131207117. The reversal of 131207105 is 501702131.

It is a cyclic number.

It is not a de Polignac number, because 131207105 - 2² = 131207101 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131207101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5825 + ... + 17214.

It is an arithmetic number, because the mean of its divisors is an integer number (10575360).

Almost surely, 2^131207105 is an apocalyptic number.

It is an amenable number.

131207105 is a deficient number, since it is larger than the sum of its proper divisors (37998655).

131207105 is a wasteful number, since it uses less digits than its factorization.

131207105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23128.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 131207105 is about 11454.5669931255. The cubic root of 131207105 is about 508.1428094269.

Adding to 131207105 its reverse (501702131), we get a palindrome (632909236).

The spelling of 131207105 in words is "one hundred thirty-one million, two hundred seven thousand, one hundred five".