7000145 has 4 divisors (see below), whose sum is σ = 8400180. Its totient is φ = 5600112.

The previous prime is 7000129. The next prime is 7000157. The reversal of 7000145 is 5410007.

It is a happy number.

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 2768896 + 4231249 = 1664^2 + 2057^2 .

It is a cyclic number.

It is not a de Polignac number, because 7000145 - 2⁴ = 7000129 is a prime.

It is an Ulam number.

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, 700010 + ... + 700019.

It is an arithmetic number, because the mean of its divisors is an integer number (2100045).

Almost surely, 2^7000145 is an apocalyptic number.

It is an amenable number.

7000145 is a deficient number, since it is larger than the sum of its proper divisors (1400035).

7000145 is a wasteful number, since it uses less digits than its factorization.

7000145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1400034.

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 7000145 is about 2645.7787133470. The cubic root of 7000145 is about 191.2944391016.

The spelling of 7000145 in words is "seven million, one hundred forty-five", and thus it is an aban number.