7000144 has 10 divisors (see below), whose sum is σ = 13562810. Its totient is φ = 3500064.

The previous prime is 7000129. The next prime is 7000157. The reversal of 7000144 is 4410007.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6190144 + 810000 = 2488^2 + 900^2 .

It is a Harshad number since it is a multiple of its sum of digits (16), and also a Moran number because the ratio is a prime number: 437509 = 7000144 / (7 + 0 + 0 + 0 + 1 + 4 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 218739 + ... + 218770.

It is an arithmetic number, because the mean of its divisors is an integer number (1356281).

Almost surely, 2^7000144 is an apocalyptic number.

It is an amenable number.

7000144 is a deficient number, since it is larger than the sum of its proper divisors (6562666).

7000144 is a wasteful number, since it uses less digits than its factorization.

7000144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437517 (or 437511 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 7000144 is about 2645.7785243667. The cubic root of 7000144 is about 191.2944299925.

The spelling of 7000144 in words is "seven million, one hundred forty-four", and thus it is an aban number.