131534069 has 4 divisors (see below), whose sum is σ = 133763520. Its totient is φ = 129304620.

The previous prime is 131534063. The next prime is 131534077. The reversal of 131534069 is 960435131.

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-131534069 is a prime.

It is a super-2 number, since 2×131534069² = 34602422615393522, 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 (131534063) 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, 1114637 + ... + 1114754.

It is an arithmetic number, because the mean of its divisors is an integer number (33440880).

Almost surely, 2^131534069 is an apocalyptic number.

It is an amenable number.

131534069 is a deficient number, since it is larger than the sum of its proper divisors (2229451).

131534069 is an equidigital number, since it uses as much as digits as its factorization.

131534069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2229450.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 131534069 is about 11468.8303239694. The cubic root of 131534069 is about 508.5645512917.

The spelling of 131534069 in words is "one hundred thirty-one million, five hundred thirty-four thousand, sixty-nine".