3450145073 has 4 divisors (see below), whose sum is σ = 3463570020. Its totient is φ = 3436720128.

The previous prime is 3450145057. The next prime is 3450145091. The reversal of 3450145073 is 3705410543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3705410543 = 2459 ⋅1506877.

It can be written as a sum of positive squares in 2 ways, for example, as 3058421809 + 391723264 = 55303^2 + 19792^2 .

It is a cyclic number.

It is not a de Polignac number, because 3450145073 - 2⁴ = 3450145057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3450145043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6712088 + ... + 6712601.

It is an arithmetic number, because the mean of its divisors is an integer number (865892505).

Almost surely, 2^3450145073 is an apocalyptic number.

It is an amenable number.

3450145073 is a deficient number, since it is larger than the sum of its proper divisors (13424947).

3450145073 is a wasteful number, since it uses less digits than its factorization.

3450145073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13424946.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 3450145073 is about 58737.9355527584. The cubic root of 3450145073 is about 1511.0509872546.

The spelling of 3450145073 in words is "three billion, four hundred fifty million, one hundred forty-five thousand, seventy-three".