7172142 has 16 divisors (see below), whose sum is σ = 14678400. Its totient is φ = 2335032.

The previous prime is 7172131. The next prime is 7172167. The reversal of 7172142 is 2412717.

7172142 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13642 + ... + 14157.

It is an arithmetic number, because the mean of its divisors is an integer number (917400).

Almost surely, 2^7172142 is an apocalyptic number.

7172142 is an abundant number, since it is smaller than the sum of its proper divisors (7506258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7172142 is a wasteful number, since it uses less digits than its factorization.

7172142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27847.

The product of its digits is 784, while the sum is 24.

The square root of 7172142 is about 2678.0855102106. The cubic root of 7172142 is about 192.8485124102.

Adding to 7172142 its reverse (2412717), we get a palindrome (9584859).

The spelling of 7172142 in words is "seven million, one hundred seventy-two thousand, one hundred forty-two".