131081401 has 4 divisors (see below), whose sum is σ = 142997904. Its totient is φ = 119164900.

The previous prime is 131081389. The next prime is 131081471. The reversal of 131081401 is 104180131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131081401 - 2⁷ = 131081273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131081471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5958235 + ... + 5958256.

It is an arithmetic number, because the mean of its divisors is an integer number (35749476).

Almost surely, 2^131081401 is an apocalyptic number.

131081401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

131081401 is a deficient number, since it is larger than the sum of its proper divisors (11916503).

131081401 is a wasteful number, since it uses less digits than its factorization.

131081401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11916502.

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 131081401 is about 11449.0786092157. The cubic root of 131081401 is about 507.9804808360.

The spelling of 131081401 in words is "one hundred thirty-one million, eighty-one thousand, four hundred one".