73013057 has 4 divisors (see below), whose sum is σ = 78629460. Its totient is φ = 67396656.

The previous prime is 73013051. The next prime is 73013069. The reversal of 73013057 is 75031037.

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 37503376 + 35509681 = 6124^2 + 5959^2 .

It is a cyclic number.

It is not a de Polignac number, because 73013057 - 2¹⁸ = 72750913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73013051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2808182 + ... + 2808207.

It is an arithmetic number, because the mean of its divisors is an integer number (19657365).

Almost surely, 2^73013057 is an apocalyptic number.

It is an amenable number.

73013057 is a deficient number, since it is larger than the sum of its proper divisors (5616403).

73013057 is a wasteful number, since it uses less digits than its factorization.

73013057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5616402.

The product of its (nonzero) digits is 2205, while the sum is 26.

The square root of 73013057 is about 8544.7678142826. The cubic root of 73013057 is about 417.9588357928.

The spelling of 73013057 in words is "seventy-three million, thirteen thousand, fifty-seven".