20461039 has 2 divisors, whose sum is σ = 20461040. Its totient is φ = 20461038.

The previous prime is 20461033. The next prime is 20461061. The reversal of 20461039 is 93016402.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20461039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20461033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10230519 + 10230520.

It is an arithmetic number, because the mean of its divisors is an integer number (10230520).

Almost surely, 2^20461039 is an apocalyptic number.

20461039 is a deficient number, since it is larger than the sum of its proper divisors (1).

20461039 is an equidigital number, since it uses as much as digits as its factorization.

20461039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 20461039 is about 4523.3880001609. The cubic root of 20461039 is about 273.5116908821.

The spelling of 20461039 in words is "twenty million, four hundred sixty-one thousand, thirty-nine".