131026061 has 4 divisors (see below), whose sum is σ = 131509824. Its totient is φ = 130542300.

The previous prime is 131025977. The next prime is 131026087. The reversal of 131026061 is 160620131.

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 a de Polignac number, because none of the positive numbers 2^k-131026061 is a prime.

It is a super-2 number, since 2×131026061² = 34335657322351442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131025061) 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, 241475 + ... + 242016.

It is an arithmetic number, because the mean of its divisors is an integer number (32877456).

Almost surely, 2^131026061 is an apocalyptic number.

It is an amenable number.

131026061 is a deficient number, since it is larger than the sum of its proper divisors (483763).

131026061 is an equidigital number, since it uses as much as digits as its factorization.

131026061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483762.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 131026061 is about 11446.6615657143. The cubic root of 131026061 is about 507.9089843038.

Adding to 131026061 its reverse (160620131), we get a palindrome (291646192).

The spelling of 131026061 in words is "one hundred thirty-one million, twenty-six thousand, sixty-one".