7142425 has 6 divisors (see below), whose sum is σ = 8856638. Its totient is φ = 5713920.

The previous prime is 7142419. The next prime is 7142437. The reversal of 7142425 is 5242417.

It can be written as a sum of positive squares in 3 ways, for example, as 61504 + 7080921 = 248^2 + 2661^2 .

It is not a de Polignac number, because 7142425 - 2¹³ = 7134233 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 285697 = 7142425 / (7 + 1 + 4 + 2 + 4 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7142425.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 142824 + ... + 142873.

Almost surely, 2^7142425 is an apocalyptic number.

It is an amenable number.

7142425 is a deficient number, since it is larger than the sum of its proper divisors (1714213).

7142425 is a wasteful number, since it uses less digits than its factorization.

7142425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285707 (or 285702 counting only the distinct ones).

The product of its digits is 2240, while the sum is 25.

The square root of 7142425 is about 2672.5315713757. The cubic root of 7142425 is about 192.5817946659.

The spelling of 7142425 in words is "seven million, one hundred forty-two thousand, four hundred twenty-five".