420826151 has 4 divisors (see below), whose sum is σ = 421379904. Its totient is φ = 420272400.

The previous prime is 420826121. The next prime is 420826157. The reversal of 420826151 is 151628024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 420826151 - 2¹⁰ = 420825127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420826157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275735 + ... + 277256.

It is an arithmetic number, because the mean of its divisors is an integer number (105344976).

Almost surely, 2^420826151 is an apocalyptic number.

420826151 is a deficient number, since it is larger than the sum of its proper divisors (553753).

420826151 is an equidigital number, since it uses as much as digits as its factorization.

420826151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553752.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 420826151 is about 20514.0476503298. The cubic root of 420826151 is about 749.3779440564.

The spelling of 420826151 in words is "four hundred twenty million, eight hundred twenty-six thousand, one hundred fifty-one".