420515153 has 2 divisors, whose sum is σ = 420515154. Its totient is φ = 420515152.

The previous prime is 420515143. The next prime is 420515191. The reversal of 420515153 is 351515024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 263965009 + 156550144 = 16247^2 + 12512^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420515153 is a prime.

It is a super-2 number, since 2×420515153² = 353665987805226818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (420515143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210257576 + 210257577.

It is an arithmetic number, because the mean of its divisors is an integer number (210257577).

Almost surely, 2^420515153 is an apocalyptic number.

It is an amenable number.

420515153 is a deficient number, since it is larger than the sum of its proper divisors (1).

420515153 is an equidigital number, since it uses as much as digits as its factorization.

420515153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 420515153 is about 20506.4661265660. The cubic root of 420515153 is about 749.1932973596.

The spelling of 420515153 in words is "four hundred twenty million, five hundred fifteen thousand, one hundred fifty-three".