474515021 has 2 divisors, whose sum is σ = 474515022. Its totient is φ = 474515020.

The previous prime is 474515009. The next prime is 474515039. The reversal of 474515021 is 120515474.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 430770025 + 43744996 = 20755^2 + 6614^2 .

It is a cyclic number.

It is not a de Polignac number, because 474515021 - 2¹⁰ = 474513997 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (474515521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237257510 + 237257511.

It is an arithmetic number, because the mean of its divisors is an integer number (237257511).

Almost surely, 2^474515021 is an apocalyptic number.

It is an amenable number.

474515021 is a deficient number, since it is larger than the sum of its proper divisors (1).

474515021 is an equidigital number, since it uses as much as digits as its factorization.

474515021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 474515021 is about 21783.3656949517. The cubic root of 474515021 is about 779.9797392283.

The spelling of 474515021 in words is "four hundred seventy-four million, five hundred fifteen thousand, twenty-one".