73733145 has 16 divisors (see below), whose sum is σ = 119636352. Its totient is φ = 38769920.

The previous prime is 73733137. The next prime is 73733171. The reversal of 73733145 is 54133737.

It is a happy number.

It is not a de Polignac number, because 73733145 - 2³ = 73733137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33552 + ... + 35681.

It is an arithmetic number, because the mean of its divisors is an integer number (7477272).

Almost surely, 2^73733145 is an apocalyptic number.

It is an amenable number.

73733145 is a deficient number, since it is larger than the sum of its proper divisors (45903207).

73733145 is a wasteful number, since it uses less digits than its factorization.

73733145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69312.

The product of its digits is 26460, while the sum is 33.

The square root of 73733145 is about 8586.8006265430. The cubic root of 73733145 is about 419.3283766909.

The spelling of 73733145 in words is "seventy-three million, seven hundred thirty-three thousand, one hundred forty-five".