421150567 has 2 divisors, whose sum is σ = 421150568. Its totient is φ = 421150566.

The previous prime is 421150559. The next prime is 421150589. The reversal of 421150567 is 765051124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 421150567 - 2³ = 421150559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421150517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210575283 + 210575284.

It is an arithmetic number, because the mean of its divisors is an integer number (210575284).

Almost surely, 2^421150567 is an apocalyptic number.

421150567 is a deficient number, since it is larger than the sum of its proper divisors (1).

421150567 is an equidigital number, since it uses as much as digits as its factorization.

421150567 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 421150567 is about 20521.9532939728. The cubic root of 421150567 is about 749.5704604117.

The spelling of 421150567 in words is "four hundred twenty-one million, one hundred fifty thousand, five hundred sixty-seven".