73741145 has 4 divisors (see below), whose sum is σ = 88489380. Its totient is φ = 58992912.

The previous prime is 73741141. The next prime is 73741163. The reversal of 73741145 is 54114737.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29278921 + 44462224 = 5411^2 + 6668^2 .

It is a cyclic number.

It is not a de Polignac number, because 73741145 - 2² = 73741141 is a prime.

It is a super-2 number, since 2×73741145² = 10875512931822050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (73741141) 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 3 ways as a sum of consecutive naturals, for example, 7374110 + ... + 7374119.

It is an arithmetic number, because the mean of its divisors is an integer number (22122345).

Almost surely, 2^73741145 is an apocalyptic number.

It is an amenable number.

73741145 is a deficient number, since it is larger than the sum of its proper divisors (14748235).

73741145 is a wasteful number, since it uses less digits than its factorization.

73741145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14748234.

The product of its digits is 11760, while the sum is 32.

The square root of 73741145 is about 8587.2664451501. The cubic root of 73741145 is about 419.3435417645.

The spelling of 73741145 in words is "seventy-three million, seven hundred forty-one thousand, one hundred forty-five".