7142135 has 32 divisors (see below), whose sum is σ = 11515392. Its totient is φ = 4106880.

The previous prime is 7142129. The next prime is 7142141. The reversal of 7142135 is 5312417.

It is an interprime number because it is at equal distance from previous prime (7142129) and next prime (7142141).

It is not a de Polignac number, because 7142135 - 2¹² = 7138039 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7142135.

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 31 ways as a sum of consecutive naturals, for example, 4292 + ... + 5718.

It is an arithmetic number, because the mean of its divisors is an integer number (359856).

Almost surely, 2^7142135 is an apocalyptic number.

7142135 is a deficient number, since it is larger than the sum of its proper divisors (4373257).

7142135 is a wasteful number, since it uses less digits than its factorization.

7142135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1463.

The product of its digits is 840, while the sum is 23.

The square root of 7142135 is about 2672.4773151516. The cubic root of 7142135 is about 192.5791881993.

The spelling of 7142135 in words is "seven million, one hundred forty-two thousand, one hundred thirty-five".