131643051 has 8 divisors (see below), whose sum is σ = 175841424. Its totient is φ = 87603360.

The previous prime is 131643047. The next prime is 131643059. The reversal of 131643051 is 150346131.

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

It is not a de Polignac number, because 131643051 - 2² = 131643047 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131643059) 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, 37720 + ... + 41061.

It is an arithmetic number, because the mean of its divisors is an integer number (21980178).

Almost surely, 2^131643051 is an apocalyptic number.

131643051 is a deficient number, since it is larger than the sum of its proper divisors (44198373).

131643051 is an equidigital number, since it uses as much as digits as its factorization.

131643051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79341.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 131643051 is about 11473.5805658042. The cubic root of 131643051 is about 508.7049688584.

Adding to 131643051 its reverse (150346131), we get a palindrome (281989182).

The spelling of 131643051 in words is "one hundred thirty-one million, six hundred forty-three thousand, fifty-one".