420109147 has 2 divisors, whose sum is σ = 420109148. Its totient is φ = 420109146.

The previous prime is 420109141. The next prime is 420109153. The reversal of 420109147 is 741901024.

It is a balanced prime because it is at equal distance from previous prime (420109141) and next prime (420109153).

It is a cyclic number.

It is not a de Polignac number, because 420109147 - 2¹⁵ = 420076379 is a prime.

It is not a weakly prime, because it can be changed into another prime (420109141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210054573 + 210054574.

It is an arithmetic number, because the mean of its divisors is an integer number (210054574).

Almost surely, 2^420109147 is an apocalyptic number.

420109147 is a deficient number, since it is larger than the sum of its proper divisors (1).

420109147 is an equidigital number, since it uses as much as digits as its factorization.

420109147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 420109147 is about 20496.5642730678. The cubic root of 420109147 is about 748.9521051630.

The spelling of 420109147 in words is "four hundred twenty million, one hundred nine thousand, one hundred forty-seven".