420150189 has 16 divisors (see below), whose sum is σ = 593611200. Its totient is φ = 263420160.

The previous prime is 420150187. The next prime is 420150191. The reversal of 420150189 is 981051024.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (420150187) and next prime (420150191).

It is not a de Polignac number, because 420150189 - 2¹ = 420150187 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420150187) 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 in 15 ways as a sum of consecutive naturals, for example, 90087 + ... + 94635.

It is an arithmetic number, because the mean of its divisors is an integer number (37100700).

Almost surely, 2^420150189 is an apocalyptic number.

It is an amenable number.

420150189 is a deficient number, since it is larger than the sum of its proper divisors (173461011).

420150189 is a wasteful number, since it uses less digits than its factorization.

420150189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6380.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 420150189 is about 20497.5654408030. The cubic root of 420150189 is about 748.9764936595.

The spelling of 420150189 in words is "four hundred twenty million, one hundred fifty thousand, one hundred eighty-nine".