131002069 has 4 divisors (see below), whose sum is σ = 142911360. Its totient is φ = 119092780.

The previous prime is 131002033. The next prime is 131002073. The reversal of 131002069 is 960200131.

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 131002069 - 2⁹ = 131001557 is a prime.

It is a super-2 number, since 2×131002069² = 34323084164561522, 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 (131002009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5954629 + ... + 5954650.

It is an arithmetic number, because the mean of its divisors is an integer number (35727840).

Almost surely, 2^131002069 is an apocalyptic number.

It is an amenable number.

131002069 is a deficient number, since it is larger than the sum of its proper divisors (11909291).

131002069 is a wasteful number, since it uses less digits than its factorization.

131002069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11909290.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 131002069 is about 11445.6135265874. The cubic root of 131002069 is about 507.8779815753.

The spelling of 131002069 in words is "one hundred thirty-one million, two thousand, sixty-nine".