7148025 has 18 divisors (see below), whose sum is σ = 12803310. Its totient is φ = 3812160.

The previous prime is 7148023. The next prime is 7148051. The reversal of 7148025 is 5208417.

It can be written as a sum of positive squares in 3 ways, for example, as 114921 + 7033104 = 339^2 + 2652^2 .

It is not a de Polignac number, because 7148025 - 2¹ = 7148023 is a prime.

It is a super-2 number, since 2×7148025² = 102188522801250, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7148025.

It is not an unprimeable number, because it can be changed into a prime (7148023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 15660 + ... + 16109.

It is an arithmetic number, because the mean of its divisors is an integer number (711295).

Almost surely, 2^7148025 is an apocalyptic number.

7148025 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7148025 is a deficient number, since it is larger than the sum of its proper divisors (5655285).

7148025 is a wasteful number, since it uses less digits than its factorization.

7148025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31785 (or 31777 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 7148025 is about 2673.5790618570. The cubic root of 7148025 is about 192.6321126050.

The spelling of 7148025 in words is "seven million, one hundred forty-eight thousand, twenty-five".