35138381 has 2 divisors, whose sum is σ = 35138382. Its totient is φ = 35138380.

The previous prime is 35138377. The next prime is 35138393. The reversal of 35138381 is 18383153.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29214025 + 5924356 = 5405^2 + 2434^2 .

It is a cyclic number.

It is not a de Polignac number, because 35138381 - 2² = 35138377 is a prime.

It is a super-2 number, since 2×35138381² = 2469411638602322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (35138321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17569190 + 17569191.

It is an arithmetic number, because the mean of its divisors is an integer number (17569191).

Almost surely, 2^35138381 is an apocalyptic number.

It is an amenable number.

35138381 is a deficient number, since it is larger than the sum of its proper divisors (1).

35138381 is an equidigital number, since it uses as much as digits as its factorization.

35138381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 32.

The square root of 35138381 is about 5927.7635749075. The cubic root of 35138381 is about 327.5371626146.

The spelling of 35138381 in words is "thirty-five million, one hundred thirty-eight thousand, three hundred eighty-one".