46545209 has 6 divisors (see below), whose sum is σ = 47709870. Its totient is φ = 45408320.

The previous prime is 46545199. The next prime is 46545211. The reversal of 46545209 is 90254564.

It is a happy number.

46545209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 7856809 + 38688400 = 2803^2 + 6220^2 .

It is not a de Polignac number, because 46545209 - 2¹² = 46541113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (46545409) 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 5 ways as a sum of consecutive naturals, for example, 12164 + ... + 15525.

It is an arithmetic number, because the mean of its divisors is an integer number (7951645).

Almost surely, 2^46545209 is an apocalyptic number.

It is an amenable number.

46545209 is a deficient number, since it is larger than the sum of its proper divisors (1164661).

46545209 is an equidigital number, since it uses as much as digits as its factorization.

46545209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27771 (or 27730 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 46545209 is about 6822.4049278828. The cubic root of 46545209 is about 359.7148178705.

The spelling of 46545209 in words is "forty-six million, five hundred forty-five thousand, two hundred nine".