35138231 has 2 divisors, whose sum is σ = 35138232. Its totient is φ = 35138230.

The previous prime is 35138209. The next prime is 35138251. The reversal of 35138231 is 13283153.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 35138231 - 2¹⁸ = 34876087 is a prime.

It is a super-2 number, since 2×35138231² = 2469390555618722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 35138231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (35138251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17569115 + 17569116.

It is an arithmetic number, because the mean of its divisors is an integer number (17569116).

Almost surely, 2^35138231 is an apocalyptic number.

35138231 is a deficient number, since it is larger than the sum of its proper divisors (1).

35138231 is an equidigital number, since it uses as much as digits as its factorization.

35138231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 26.

The square root of 35138231 is about 5927.7509225675. The cubic root of 35138231 is about 327.5366965464.

The spelling of 35138231 in words is "thirty-five million, one hundred thirty-eight thousand, two hundred thirty-one".