7172042 has 4 divisors (see below), whose sum is σ = 10758066. Its totient is φ = 3586020.

The previous prime is 7172029. The next prime is 7172093. The reversal of 7172042 is 2402717.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7070281 + 101761 = 2659^2 + 319^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7171999 and 7172017.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1793009 + ... + 1793012.

Almost surely, 2^7172042 is an apocalyptic number.

7172042 is a deficient number, since it is larger than the sum of its proper divisors (3586024).

7172042 is a wasteful number, since it uses less digits than its factorization.

7172042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3586023.

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 7172042 is about 2678.0668400919. The cubic root of 7172042 is about 192.8476161210.

Adding to 7172042 its reverse (2402717), we get a palindrome (9574759).

The spelling of 7172042 in words is "seven million, one hundred seventy-two thousand, forty-two".