131420051 has 4 divisors (see below), whose sum is σ = 150194352. Its totient is φ = 112645752.

The previous prime is 131420039. The next prime is 131420063. The reversal of 131420051 is 150024131.

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

It is an interprime number because it is at equal distance from previous prime (131420039) and next prime (131420063).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131420051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131420071) 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 3 ways as a sum of consecutive naturals, for example, 9387140 + ... + 9387153.

It is an arithmetic number, because the mean of its divisors is an integer number (37548588).

Almost surely, 2^131420051 is an apocalyptic number.

131420051 is a deficient number, since it is larger than the sum of its proper divisors (18774301).

131420051 is an equidigital number, since it uses as much as digits as its factorization.

131420051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18774300.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 131420051 is about 11463.8584691194. The cubic root of 131420051 is about 508.4175620589.

Adding to 131420051 its reverse (150024131), we get a palindrome (281444182).

The spelling of 131420051 in words is "one hundred thirty-one million, four hundred twenty thousand, fifty-one".