7455145 has 8 divisors (see below), whose sum is σ = 9004104. Its totient is φ = 5925504.

The previous prime is 7455121. The next prime is 7455179. The reversal of 7455145 is 5415547.

It can be written as a sum of positive squares in 4 ways, for example, as 34969 + 7420176 = 187^2 + 2724^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7455145 - 2⁷ = 7455017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3964 + ... + 5533.

It is an arithmetic number, because the mean of its divisors is an integer number (1125513).

Almost surely, 2^7455145 is an apocalyptic number.

It is an amenable number.

7455145 is a deficient number, since it is larger than the sum of its proper divisors (1548959).

7455145 is a wasteful number, since it uses less digits than its factorization.

7455145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9659.

The product of its digits is 14000, while the sum is 31.

The square root of 7455145 is about 2730.4111412020. The cubic root of 7455145 is about 195.3523762207.

The spelling of 7455145 in words is "seven million, four hundred fifty-five thousand, one hundred forty-five".