73349145 has 40 divisors (see below), whose sum is σ = 133685640. Its totient is φ = 38465280.

The previous prime is 73349137. The next prime is 73349147. The reversal of 73349145 is 54194337.

It can be written as a sum of positive squares in 4 ways, for example, as 7884864 + 65464281 = 2808^2 + 8091^2 .

It is not a de Polignac number, because 73349145 - 2³ = 73349137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73349147) 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 39 ways as a sum of consecutive naturals, for example, 23221 + ... + 26189.

It is an arithmetic number, because the mean of its divisors is an integer number (3342141).

Almost surely, 2^73349145 is an apocalyptic number.

It is an amenable number.

73349145 is a deficient number, since it is larger than the sum of its proper divisors (60336495).

73349145 is a wasteful number, since it uses less digits than its factorization.

73349145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3047 (or 3038 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 73349145 is about 8564.4115384538. The cubic root of 73349145 is about 418.5991594531.

The spelling of 73349145 in words is "seventy-three million, three hundred forty-nine thousand, one hundred forty-five".