7905142 has 8 divisors (see below), whose sum is σ = 13551696. Its totient is φ = 3387912.

The previous prime is 7905137. The next prime is 7905143. The reversal of 7905142 is 2415097.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 7905142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7905143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282313 + ... + 282340.

It is an arithmetic number, because the mean of its divisors is an integer number (1693962).

Almost surely, 2^7905142 is an apocalyptic number.

7905142 is a deficient number, since it is larger than the sum of its proper divisors (5646554).

7905142 is a wasteful number, since it uses less digits than its factorization.

7905142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564662.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 7905142 is about 2811.6084364648. The cubic root of 7905142 is about 199.2063716020.

The spelling of 7905142 in words is "seven million, nine hundred five thousand, one hundred forty-two".