20107349 has 2 divisors, whose sum is σ = 20107350. Its totient is φ = 20107348.

The previous prime is 20107337. The next prime is 20107357. The reversal of 20107349 is 94370102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16459249 + 3648100 = 4057^2 + 1910^2 .

It is a cyclic number.

It is not a de Polignac number, because 20107349 - 2⁸ = 20107093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20107049) 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, 10053674 + 10053675.

It is an arithmetic number, because the mean of its divisors is an integer number (10053675).

Almost surely, 2^20107349 is an apocalyptic number.

It is an amenable number.

20107349 is a deficient number, since it is larger than the sum of its proper divisors (1).

20107349 is an equidigital number, since it uses as much as digits as its factorization.

20107349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 20107349 is about 4484.1218761314. The cubic root of 20107349 is about 271.9265453684.

The spelling of 20107349 in words is "twenty million, one hundred seven thousand, three hundred forty-nine".