73019145 has 16 divisors (see below), whose sum is σ = 116979840. Its totient is φ = 38893824.

The previous prime is 73019123. The next prime is 73019161. The reversal of 73019145 is 54191037.

It is not a de Polignac number, because 73019145 - 2⁸ = 73018889 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, 11137 + ... + 16433.

It is an arithmetic number, because the mean of its divisors is an integer number (7311240).

Almost surely, 2^73019145 is an apocalyptic number.

It is an amenable number.

73019145 is a deficient number, since it is larger than the sum of its proper divisors (43960695).

73019145 is a wasteful number, since it uses less digits than its factorization.

73019145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6224.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 73019145 is about 8545.1240482511. The cubic root of 73019145 is about 417.9704522660.

It can be divided in two parts, 730191 and 45, that added together give a triangular number (730236 = T₁₂₀₈).

The spelling of 73019145 in words is "seventy-three million, nineteen thousand, one hundred forty-five".