7142231 has 4 divisors (see below), whose sum is σ = 7148232. Its totient is φ = 7136232.

The previous prime is 7142209. The next prime is 7142263. The reversal of 7142231 is 1322417.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 7142231 - 2¹⁴ = 7125847 is a prime.

It is a super-2 number, since 2×7142231² = 102022927314722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7141231) 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, 545 + ... + 3818.

It is an arithmetic number, because the mean of its divisors is an integer number (1787058).

Almost surely, 2^7142231 is an apocalyptic number.

7142231 is a deficient number, since it is larger than the sum of its proper divisors (6001).

7142231 is a wasteful number, since it uses less digits than its factorization.

7142231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6000.

The product of its digits is 336, while the sum is 20.

The square root of 7142231 is about 2672.4952759547. The cubic root of 7142231 is about 192.5800510375.

Adding to 7142231 its reverse (1322417), we get a palindrome (8464648).

The spelling of 7142231 in words is "seven million, one hundred forty-two thousand, two hundred thirty-one".