131034389 has 2 divisors, whose sum is σ = 131034390. Its totient is φ = 131034388.

The previous prime is 131034367. The next prime is 131034451. The reversal of 131034389 is 983430131.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112042225 + 18992164 = 10585^2 + 4358^2 .

It is a cyclic number.

It is not a de Polignac number, because 131034389 - 2⁸ = 131034133 is a prime.

It is a super-2 number, since 2×131034389² = 34340022201206642, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131034329) 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 as a sum of consecutive naturals, namely, 65517194 + 65517195.

It is an arithmetic number, because the mean of its divisors is an integer number (65517195).

Almost surely, 2^131034389 is an apocalyptic number.

It is an amenable number.

131034389 is a deficient number, since it is larger than the sum of its proper divisors (1).

131034389 is an equidigital number, since it uses as much as digits as its factorization.

131034389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 131034389 is about 11447.0253341207. The cubic root of 131034389 is about 507.9197449530.

The spelling of 131034389 in words is "one hundred thirty-one million, thirty-four thousand, three hundred eighty-nine".