2021471461 has 2 divisors, whose sum is σ = 2021471462. Its totient is φ = 2021471460.

The previous prime is 2021471443. The next prime is 2021471483. The reversal of 2021471461 is 1641741202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1591531236 + 429940225 = 39894^2 + 20735^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021471461 - 2⁵ = 2021471429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021471401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010735730 + 1010735731.

It is an arithmetic number, because the mean of its divisors is an integer number (1010735731).

Almost surely, 2^2021471461 is an apocalyptic number.

It is an amenable number.

2021471461 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021471461 is an equidigital number, since it uses as much as digits as its factorization.

2021471461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 2021471461 is about 44960.7769172197. The cubic root of 2021471461 is about 1264.4137349090.

The spelling of 2021471461 in words is "two billion, twenty-one million, four hundred seventy-one thousand, four hundred sixty-one".