73102345 has 4 divisors (see below), whose sum is σ = 87722820. Its totient is φ = 58481872.

The previous prime is 73102327. The next prime is 73102369. The reversal of 73102345 is 54320137.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54320137 = 43 ⋅1263259.

It can be written as a sum of positive squares in 2 ways, for example, as 23145721 + 49956624 = 4811^2 + 7068^2 .

It is a cyclic number.

It is not a de Polignac number, because 73102345 - 2⁵ = 73102313 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7310230 + ... + 7310239.

It is an arithmetic number, because the mean of its divisors is an integer number (21930705).

Almost surely, 2^73102345 is an apocalyptic number.

It is an amenable number.

73102345 is a deficient number, since it is larger than the sum of its proper divisors (14620475).

73102345 is a wasteful number, since it uses less digits than its factorization.

73102345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14620474.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 73102345 is about 8549.9909356677. The cubic root of 73102345 is about 418.1291409774.

The spelling of 73102345 in words is "seventy-three million, one hundred two thousand, three hundred forty-five".