334181389 has 2 divisors, whose sum is σ = 334181390. Its totient is φ = 334181388.

The previous prime is 334181357. The next prime is 334181479. The reversal of 334181389 is 983181433.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 206152164 + 128029225 = 14358^2 + 11315^2 .

It is a cyclic number.

It is not a de Polignac number, because 334181389 - 2⁵ = 334181357 is a prime.

It is a super-2 number, since 2×334181389² = 223354401507938642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (334181689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167090694 + 167090695.

It is an arithmetic number, because the mean of its divisors is an integer number (167090695).

Almost surely, 2^334181389 is an apocalyptic number.

It is an amenable number.

334181389 is a deficient number, since it is larger than the sum of its proper divisors (1).

334181389 is an equidigital number, since it uses as much as digits as its factorization.

334181389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 40.

The square root of 334181389 is about 18280.6287911549. The cubic root of 334181389 is about 693.9487853477.

The spelling of 334181389 in words is "three hundred thirty-four million, one hundred eighty-one thousand, three hundred eighty-nine".