7872142 has 8 divisors (see below), whose sum is σ = 11925432. Its totient is φ = 3897000.

The previous prime is 7872131. The next prime is 7872149. The reversal of 7872142 is 2412787.

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

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7872149) 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, 19284 + ... + 19687.

It is an arithmetic number, because the mean of its divisors is an integer number (1490679).

Almost surely, 2^7872142 is an apocalyptic number.

7872142 is a deficient number, since it is larger than the sum of its proper divisors (4053290).

7872142 is a wasteful number, since it uses less digits than its factorization.

7872142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39074.

The product of its digits is 6272, while the sum is 31.

The square root of 7872142 is about 2805.7337721174. The cubic root of 7872142 is about 198.9287894498.

The spelling of 7872142 in words is "seven million, eight hundred seventy-two thousand, one hundred forty-two".