7103945 has 4 divisors (see below), whose sum is σ = 8524740. Its totient is φ = 5683152.

The previous prime is 7103939. The next prime is 7103953. The reversal of 7103945 is 5493017.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5493017 = 1259 ⋅4363.

It can be written as a sum of positive squares in 2 ways, for example, as 1923769 + 5180176 = 1387^2 + 2276^2 .

It is a cyclic number.

It is not a de Polignac number, because 7103945 - 2⁶ = 7103881 is a prime.

It is a Curzon number.

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, 710390 + ... + 710399.

It is an arithmetic number, because the mean of its divisors is an integer number (2131185).

Almost surely, 2^7103945 is an apocalyptic number.

It is an amenable number.

7103945 is a deficient number, since it is larger than the sum of its proper divisors (1420795).

7103945 is a wasteful number, since it uses less digits than its factorization.

7103945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1420794.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 7103945 is about 2665.3226821531. The cubic root of 7103945 is about 192.2353252429.

The spelling of 7103945 in words is "seven million, one hundred three thousand, nine hundred forty-five".