20336149 has 2 divisors, whose sum is σ = 20336150. Its totient is φ = 20336148.

The previous prime is 20336089. The next prime is 20336159. The reversal of 20336149 is 94163302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19201924 + 1134225 = 4382^2 + 1065^2 .

It is a cyclic number.

It is not a de Polignac number, because 20336149 - 2¹¹ = 20334101 is a prime.

It is equal to p_1290547 and since 20336149 and 1290547 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20336159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10168074 + 10168075.

It is an arithmetic number, because the mean of its divisors is an integer number (10168075).

Almost surely, 2^20336149 is an apocalyptic number.

It is an amenable number.

20336149 is a deficient number, since it is larger than the sum of its proper divisors (1).

20336149 is an equidigital number, since it uses as much as digits as its factorization.

20336149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 20336149 is about 4509.5619521191. The cubic root of 20336149 is about 272.9540683145.

The spelling of 20336149 in words is "twenty million, three hundred thirty-six thousand, one hundred forty-nine".