34153921 has 2 divisors, whose sum is σ = 34153922. Its totient is φ = 34153920.

The previous prime is 34153907. The next prime is 34153949. The reversal of 34153921 is 12935143.

It is an a-pointer prime, because the next prime (34153949) can be obtained adding 34153921 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22695696 + 11458225 = 4764^2 + 3385^2 .

It is a cyclic number.

It is not a de Polignac number, because 34153921 - 2²¹ = 32056769 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 34153921.

It is not a weakly prime, because it can be changed into another prime (34151921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17076960 + 17076961.

It is an arithmetic number, because the mean of its divisors is an integer number (17076961).

Almost surely, 2^34153921 is an apocalyptic number.

It is an amenable number.

34153921 is a deficient number, since it is larger than the sum of its proper divisors (1).

34153921 is an equidigital number, since it uses as much as digits as its factorization.

34153921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 28.

The square root of 34153921 is about 5844.1356075984. The cubic root of 34153921 is about 324.4493112120.

The spelling of 34153921 in words is "thirty-four million, one hundred fifty-three thousand, nine hundred twenty-one".