7142975 has 36 divisors (see below), whose sum is σ = 10941264. Its totient is φ = 4609920.

The previous prime is 7142959. The next prime is 7142981. The reversal of 7142975 is 5792417.

It is not a de Polignac number, because 7142975 - 2⁴ = 7142959 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 420167 + ... + 420183.

It is an arithmetic number, because the mean of its divisors is an integer number (303924).

Almost surely, 2^7142975 is an apocalyptic number.

7142975 is a deficient number, since it is larger than the sum of its proper divisors (3798289).

7142975 is an frugal number, since it uses more digits than its factorization.

7142975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62 (or 29 counting only the distinct ones).

The product of its digits is 17640, while the sum is 35.

The square root of 7142975 is about 2672.6344680858. The cubic root of 7142975 is about 192.5867377708.

The spelling of 7142975 in words is "seven million, one hundred forty-two thousand, nine hundred seventy-five".