35136221 has 8 divisors (see below), whose sum is σ = 36401400. Its totient is φ = 33890560.

The previous prime is 35136217. The next prime is 35136247. The reversal of 35136221 is 12263153.

It can be written as a sum of positive squares in 4 ways, for example, as 2805625 + 32330596 = 1675^2 + 5686^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 35136221 - 2² = 35136217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (35136251) 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 in 7 ways as a sum of consecutive naturals, for example, 1166 + ... + 8463.

It is an arithmetic number, because the mean of its divisors is an integer number (4550175).

Almost surely, 2^35136221 is an apocalyptic number.

It is an amenable number.

35136221 is a deficient number, since it is larger than the sum of its proper divisors (1265179).

35136221 is an equidigital number, since it uses as much as digits as its factorization.

35136221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9759.

The product of its digits is 1080, while the sum is 23.

The square root of 35136221 is about 5927.5813786063. The cubic root of 35136221 is about 327.5304511048.

Adding to 35136221 its reverse (12263153), we get a palindrome (47399374).

The spelling of 35136221 in words is "thirty-five million, one hundred thirty-six thousand, two hundred twenty-one".