46189021 has 2 divisors, whose sum is σ = 46189022. Its totient is φ = 46189020.

The previous prime is 46189007. The next prime is 46189043. The reversal of 46189021 is 12098164.

It is a happy number.

46189021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43164900 + 3024121 = 6570^2 + 1739^2 .

It is a cyclic number.

It is not a de Polignac number, because 46189021 - 2⁷ = 46188893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46189621) 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 as a sum of consecutive naturals, namely, 23094510 + 23094511.

It is an arithmetic number, because the mean of its divisors is an integer number (23094511).

Almost surely, 2^46189021 is an apocalyptic number.

It is an amenable number.

46189021 is a deficient number, since it is larger than the sum of its proper divisors (1).

46189021 is an equidigital number, since it uses as much as digits as its factorization.

46189021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 46189021 is about 6796.2505103917. The cubic root of 46189021 is about 358.7948927054.

The spelling of 46189021 in words is "forty-six million, one hundred eighty-nine thousand, twenty-one".