73319545 has 8 divisors (see below), whose sum is σ = 94751496. Its totient is φ = 54143616.

The previous prime is 73319539. The next prime is 73319549. The reversal of 73319545 is 54591337.

It can be written as a sum of positive squares in 4 ways, for example, as 660969 + 72658576 = 813^2 + 8524^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 73319545 - 2²³ = 64930937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73319549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 563932 + ... + 564061.

It is an arithmetic number, because the mean of its divisors is an integer number (11843937).

Almost surely, 2^73319545 is an apocalyptic number.

It is an amenable number.

73319545 is a deficient number, since it is larger than the sum of its proper divisors (21431951).

73319545 is a wasteful number, since it uses less digits than its factorization.

73319545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128011.

The product of its digits is 56700, while the sum is 37.

The square root of 73319545 is about 8562.6832827099. The cubic root of 73319545 is about 418.5428434037.

The spelling of 73319545 in words is "seventy-three million, three hundred nineteen thousand, five hundred forty-five".