20061449 has 2 divisors, whose sum is σ = 20061450. Its totient is φ = 20061448.

The previous prime is 20061439. The next prime is 20061491. The reversal of 20061449 is 94416002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16974400 + 3087049 = 4120^2 + 1757^2 .

It is a cyclic number.

It is not a de Polignac number, because 20061449 - 2⁸ = 20061193 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20061409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10030724 + 10030725.

It is an arithmetic number, because the mean of its divisors is an integer number (10030725).

Almost surely, 2^20061449 is an apocalyptic number.

It is an amenable number.

20061449 is a deficient number, since it is larger than the sum of its proper divisors (1).

20061449 is an equidigital number, since it uses as much as digits as its factorization.

20061449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 20061449 is about 4479.0008930564. Note that the first 3 decimals coincide. The cubic root of 20061449 is about 271.7194745140.

The spelling of 20061449 in words is "twenty million, sixty-one thousand, four hundred forty-nine".