131642107 has 4 divisors (see below), whose sum is σ = 136181520. Its totient is φ = 127102696.

The previous prime is 131642083. The next prime is 131642113. The reversal of 131642107 is 701246131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131642107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131642167) 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, 2269663 + ... + 2269720.

It is an arithmetic number, because the mean of its divisors is an integer number (34045380).

Almost surely, 2^131642107 is an apocalyptic number.

131642107 is a deficient number, since it is larger than the sum of its proper divisors (4539413).

131642107 is an equidigital number, since it uses as much as digits as its factorization.

131642107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4539412.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 131642107 is about 11473.5394277442. The cubic root of 131642107 is about 508.7037528970.

Adding to 131642107 its reverse (701246131), we get a palindrome (832888238).

The spelling of 131642107 in words is "one hundred thirty-one million, six hundred forty-two thousand, one hundred seven".