131340511 has 4 divisors (see below), whose sum is σ = 137050992. Its totient is φ = 125630032.

The previous prime is 131340499. The next prime is 131340523. The reversal of 131340511 is 115043131.

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 (131340499) and next prime (131340523).

It is a cyclic number.

It is not a de Polignac number, because 131340511 - 2⁷ = 131340383 is a prime.

It is a super-2 number, since 2×131340511² = 34500659659482242, 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 (131340551) 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, 2855206 + ... + 2855251.

It is an arithmetic number, because the mean of its divisors is an integer number (34262748).

Almost surely, 2^131340511 is an apocalyptic number.

131340511 is a deficient number, since it is larger than the sum of its proper divisors (5710481).

131340511 is an equidigital number, since it uses as much as digits as its factorization.

131340511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5710480.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 131340511 is about 11460.3887804908. The cubic root of 131340511 is about 508.3149706765.

Adding to 131340511 its reverse (115043131), we get a palindrome (246383642).

The spelling of 131340511 in words is "one hundred thirty-one million, three hundred forty thousand, five hundred eleven".