7345945 has 4 divisors (see below), whose sum is σ = 8815140. Its totient is φ = 5876752.

The previous prime is 7345937. The next prime is 7345957. The reversal of 7345945 is 5495437.

7345945 = 1916² + 1917².

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 3674889 + 3671056 = 1917^2 + 1916^2 .

It is a cyclic number.

It is not a de Polignac number, because 7345945 - 2³ = 7345937 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, 734590 + ... + 734599.

It is an arithmetic number, because the mean of its divisors is an integer number (2203785).

Almost surely, 2^7345945 is an apocalyptic number.

7345945 is the 1917-th centered square number.

It is an amenable number.

7345945 is a deficient number, since it is larger than the sum of its proper divisors (1469195).

7345945 is a wasteful number, since it uses less digits than its factorization.

7345945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1469194.

The product of its digits is 75600, while the sum is 37.

The square root of 7345945 is about 2710.3403845274. The cubic root of 7345945 is about 194.3938662705.

The spelling of 7345945 in words is "seven million, three hundred forty-five thousand, nine hundred forty-five".